Checker HC Handheld Colorimeters

HI700 Checker®HC Handheld Colorimeter - Ammonia Low Range for Fresh Water by Hanna Instruments

The all new HI 700 Checker Ammonia LR for fresh water can be used in place of HI 3824 or HI 38049 fresh water test kits. The Checker®HC is a simple, accurate, and cost effective way to measure low ranges of ammonia in fresh water. Designed as a more accurate alternative to chemical test kits, the HI 700 provides quick, accurate results in four easy steps.

1.) Step One - Add a sample to the included cuvette(s)
2.) Step Two - Insert sample into the Checker and zero it out
3.) Step Three - Remove sample and add reagent (A & B - 4 drops of each)
4.) Step Four - Reinsert sample and click the button to measure your results or…- Press and hold the button for 3 seconds for a time reaction reading

The HI 700 uses an adaptation of the ASTM Manual of Water and Environmental Technology, D1426-92, Nessler method. The reaction between ammonia and reagents causes a yellow tint in the sample.

Features/Benefits:

• Small palm-sized design
• Accurate from ±0.05ppm ± 5% of reading
• Dedicated to a single parameter
• Uses a single AAA battery
• Auto Power Off after 10 minutes in inactivity
• Built-in timer for timed reaction readings

Primary Applications:

• Water Quality
• Education
• Freshwater Aquariums
• Wastewater
• Environmental

Order Information:

The HI 700 Checker®HC is supplied with a reagent starter kit (1 bottle of 700A-0 reagent A and 1 bottle of 700B-0 reagent B), 1 x 1.5V AAA battery and an instruction manual.

HI705 Checker®HC Handheld Colorimeter - Silica Low Range by Hanna Instruments

The HI 705 Checker®HC is a simple, accurate, and cost effective way to measure low ranges of silica. Designed as a more accurate alternative to chemical test kits, the HI 705 provides quick, accurate results in four easy steps.

1.) Step One - Add a sample to the included cuvette. Add reagent “A” and “B”
2.) Step Two - Insert sample into the Checker and zero it out
3.) Step Three - Remove sample and add reagent “C”
4.) Step Four - Reinsert sample and click the button to measure your results or… - Press and hold the button for 3 seconds for a time reaction reading

The HI 705 uses an adaptation of the ASTM D859 method of heteropoly blue method. The reaction between silica and reagents causes a blue tint in the sample.

Features/Benefits:

• Small palm-sized design
• Accurate from ±0.03ppm ± 5% of reading
• Dedicated to a single parameter
• Uses a single AAA battery
• Auto Power Off after 10 minutes in inactivity
• Built-in timer for timed reaction readings

Primary Applications:

• Water Quality
• Education
• Environmental
• Water Treatment (Boilers/Cooling Towers)

Order Information:

The HI 705 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (1 bottle reagent A, 6 packets of reagent B, and 6 packets of reagent C), 1 x 1.5V AAA battery, and an instruction manual.

HI707 Checker®HC Handheld Colorimeter - Nitrite Low Range by Hanna Instruments

The HI 707 Checker®HC is a simple, accurate, and cost effective way to measure low ranges of nitrite. Designed as a more accurate alternative to chemical test kits, the HI 707 provides quick, accurate results in four easy steps.

1.) Step One - Add a sample to the included cuvette(s)
2.) Step Two - Insert sample into the Checker and zero it out
3.) Step Three - Remove sample and add reagent
4.) Step Four - Reinsert sample and click the button to measure your results or… - Press and hold the button for 3 seconds for a time reaction reading

The HI 707 uses an adaptation of EPA diazotization method 354.1. The reaction between nitrite and the reagent causes a pink tint in the sample.

Features/Benefits:

• Small palm-sized design
• Accurate from ±20 ppb ± 5% of reading
• Dedicated to a single parameter
• Uses a single AAA battery
• Auto Power Off after 10 minutes in inactivity
• Built-in timer for timed reaction readings

Primary Applications:

• Water Quality
• Education
• Environmental
• Wastewater

Order Information:

The HI 707 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (6 packets of nitrite LR reagent), 1 x 1.5V AAA battery, and an instruction manual.

HI733 Checker®HC Handheld Colorimeter - Ammonia High Range by Hanna Instruments

The HI 733 Checker®HC is a simple, accurate, and cost effective way to measure high ranges of ammonia in fresh water. Designed as a more accurate alternative to chemical test kits, the HI 733 provides quick, accurate results in four easy steps.

1.) Step One - Add 1ml of sample and 9ml of reagent “B” to the included cuvette
2.) Step Two - Insert sample into the Checker and zero it out
3.) Step Three - Remove sample and add reagent “A”
4.) Step Four - Reinsert sample and click the button to measure your results or… - Press and hold the button for 3 seconds for a time reaction reading

The HI 733 uses an adaptation of the ASTM Manual of water and Environmental Technology D1426-92, Nessler Method. The reaction between ammonia and reagents causes a yellow tint in the sample.

Features/Benefits:

• Small palm-sized design
• Accurate from ±1.0ppm ±5% of reading
• Dedicated to a single parameter
• Uses a single AAA battery
• Auto Power Off after 10 minutes in inactivity
• Built-in timer for timed reaction readings

Primary Applications:

• Water Quality
• Education
• Environmental
• Wastewater

Order Information:

The HI 733 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (1bottle of HI 733A-0 and 1 bottle of HI 733B-0), 1 x1.5V AAA battery, and an instruction manual.

HI729 Checker®HC Handheld Colorimeter - Fluoride Low Range by Hanna Instruments

Fluoride is one of the very few chemicals that have been shown to cause significant effects in people through drinking-water. Fluoride has beneficial effects on teeth at low concentrations in drinking-water, but excessive exposure to fluoride in drinking-water, or in combination with exposure to fluoride from other sources, can give rise to a number of adverse effects.

Water fluoridation is the controlled addition of fluoride to a public water supply to reduce tooth decay. Fluoridated water operates on tooth surfaces: in the mouth it creates low levels of fluoride in saliva, which reduces the rate at which tooth enamel demineralizes and increases the rate at which it remineralizes in the early stages of cavities.

A 1994 World Health Organization expert committee suggested a level of fluoride from 0.5 to 1.0 mg/L, depending on climate. Bottled water typically has unknown fluoride levels, and some domestic water filters remove some or all fluoride.

The HI 729 Checker®HC is simple to use. For this measurement you need 2 vials (#1 and #2); in both vials add 2 mL of reagent and until the mark: deionized water in vial #1 and sample in vial #2, and gently invert 5 times, and wait 2 minutes. Then insert the cuvette #1 into the HI 729 Checker®HC and press the button to zero; after that cuvette #2 to read the measurement results.

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for water quality

Order Information:

HI 729 Checker®HC is supplied with sample cuvettes with caps (2), reagents for 6 tests, syringe with tip, battery and instructions.

HI770 Checker®HC Handheld Colorimeter - Silica High Range by Hanna Instruments

Silica is the name given to silicon dioxide, SiO2. Silicon, Si, is the most abundant element in the Earth’s crust, 28% of it by weight. Silicon is never found free form in nature. In crystallized form it is only reactive under conditions of extremely high temperatures. Water and water vapor probably have little influence upon silicon solubility, because a protective surface layer of silicon dioxide is rapidly formed. Silicon binds with other elements to form various species of silica and silicate. The concentration of the soluble silica molecules are important to aquaculture because they influence (and limit) the growth of diatoms.

In most waters, the predominant form of dissolved silica is monosilicic acid, which incorporates 2 water molecules.

The HANNA HI 770 Checker®HC is accurate and affordable. This portable handheld colorimeter features a resolution of 1 ppm (200 points) and ±2 ppm ±5% of reading accuracy.

The contoured style of the HI 770 Checker®HC fit in your palm and pocket perfectly and the large LCD is easy to read. The auto shut off feature assures the battery life will not be drained if you forget to turn it off.

The HI 770 Checker®HC is simple to use. First, zero the instrument with your water sample. Next, add the reagents in order, respecting all the indications. Last, place the vial into the Checker®HC, press the operational button for about 3 seconds and the display will show the countdown prior to the measurement or, alternatively, wait for 2 minutes after last reagent adding and press operational button. The Checker®HC displays concentration in ppm of Silica as SiO2.

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for aquaculture

Order Information:

HI 770 Checker®HC is supplied with sample cuvettes with caps (2 ea.), powder reagents for 6 tests, battery and instructions.

HI758 Checker®HC Handheld Colorimeter - Calcium by Hanna Instruments

Calcium presence in water supplies results from passage over deposits of limestone, dolomite, gypsum and gypsiferous shale. Its concentration may extend from 0 to several hundred milligrams per liter,depending on its source and treatment. Calcium is necessary in plant and animal nutrition since it is an essential constituent of bones, shells and plant structures. Calcium in water as carbonate is one of the primary components of water hardness which can cause pipe or tube scaling.

The HI 758 Calcium Checker®HC is extremely simple to use. First, zero the instrument by adding Reagent A and deionized water. Insert into the HI 758 and press the button. Next, remove the vial and add Reagent B and shake to dissolve. Reinsert into the Checker®HC and press the button to read the calcium concentration in ppm on the display.

Weighing a mere 64 g (2.25 oz.), the Checker®HC easily fits into the palm of your hand or pocket!

• Easier to use and more accurate than chemical test kits!
• Large, easy to read digits.
• Auto shut off.
• Operated by a single AAA battery
• Use for quick and accurate on the spot analysis.
• Single button operation: zero and measure.

Ideal for Aquaculture and Aquarium testing!

Order Information:

HI 758 Calcium Checker HC is supplied with 2 sample cuvettes and caps, reagents for 15 tests, (1)1.5V AAA battery, and instruction manual

HI727 Checker®HC Handheld Colorimeter - Color of Water by Hanna Instruments

True color is caused by dissolved compounds in water. It can be natural or artificial. Dissolved and suspended solids (together) cause apparent color. Color is measured in Platinum-Cobalt units. The AWWA recommends ? 15 PCU.

The HI 727 Checker®HC is extremely simple to use. First, zero the instrument with deionized water. Next, prepare the sample according to the Apparent/True color measurement. Place the second vial with prepared sample into the Checker®HC, press the operational button and the HI 727 Checker®HC displays the color of water in PCU.

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for Water Quality

Order Information:

HI 727 Checker®HC is supplied with sample cuvettes with caps (2 ea.), battery and instructions

HI736 Checker HC Handheld Colorimeter - Phosphorus Ultra Low Range by Hanna Instruments

Phosphorus concentration in water is monitored because it causes corrosion when present in levels too high.

The HANNA HI 736 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. The HANNA HI 736 is both accurate and affordable.

The HI 736 Checker®HC portable handheld colorimeter features a resolution of 1 ppb and ±5 ppb ±5% of reading accuracy and uses an adaptation of Standard Method Ascorbic Acid.

The HI 736 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagents. Last, place the vial into the Checker®HC, press the button and read the results. It’s that easy.

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for aquaculture (marine applications)

Order Information:

HI 736 Checker®HC is supplied with sample cuvettes with caps (2), powder reagents for phosphorus (6), battery and instructions.

HI713 Checker®HC Handheld Colorimeter - Phosphate Low Range by Hanna Instruments

Orthophosphates are found in natural and wastewaters. They are commonly added to drinking water as a corrosion inhibitor. The instantaneous analysis of orthophosphate by colorimetric determination provides rapid results using a standard analysis technique.

The HANNA HI 713 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give only a few resolution points while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 713 Checker®HC is accurate and affordable.

The HI 713 Checker®HC portable handheld colorimeter features a resolution of 0.01 ppm (250 points) and ±0.04 ppm (mg/L) ±4% of reading accuracy. The HI 713 Checker®HC uses an adaptation of Standard Method 4500-P E, Ascorbic Acid method.

The HI 713 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagents. Last, place the vial into the Checker®HC, press the button and read the results. It’s that easy.

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for Aquaculture, natural, waste, drinking waters and agriculture

Order Information:

HI 713 Checker®HC is supplied with sample cuvettes with caps (2), powder reagents for phosphate (6), battery and instructions.

HI718 Checker®HC Handheld Colorimeter - Iodine by Hanna Instruments

The HANNA Checker®HC’s bridge the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 718 and Checker®HC is accurate and affordable.

The HI 718 Checker®HC portable handheld colorimeter features a resolution of 0.1 ppm and accuracy of ±0.1 ppm ±5% of reading. This Checker® HC uses a modification of the DPD method used for residual chlorine.

The contoured style of this Checker®HC fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.

The HI 718 is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the instrument, press the button and read the results. It’s that easy.

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for Swimming pools and spas, industrial processes and disinfection

Order Information:

HI 718 Checker®HC is supplied with sample cuvettes with caps (2), powder reagents for iodine (6), battery and instructions.

HI721 Checker®HC Handheld Colorimeter - Iron by Hanna Instruments

The HANNA HI 721 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 721 Checker®HC is accurate and affordable with immediate results.

The new HI 721 Checker®HC portable handheld colorimeter features a resolution of 0.01 ppm (500 points) and ±0.04 ppm ±2% of reading accuracy. The HI 721 Checker®HC uses an adaptation of Standard Method 315 B.

The contoured style of this Checker®HC fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.

The HI 721 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the HI 721 Checker®HC, press the button and read the results. It’s that easy.

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for Industrial, ground and treated waters, mining leachate monitoring and agricultural irrigation water

Order Information:

HI 721 Checker®HC is supplied with sample cuvettes with caps (2), powder reagents for iron (6), battery and instructions.

HI755 Checker®HC Handheld Colorimeter - Alkalinity by Hanna Instruments

The HANNA HI 755 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and have low resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 755 Checker®HC is accurate and affordable.

The Checker®HC features an accuracy of ±5 ppm (mg/L) ±5% of reading and uses the colorimetric method.

The contoured style of this Checker®HC fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.

The HI 755 Checker®HC is extremely simple to use. After zeroing the instrument with your water sample, add the reagent to the cuvette and gently invert 5 times. Then insert the cuvette into the HI 755 Checker®HC and press the button to read the results. It’s that easy.

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for Saltwater Aquariums

Order Information:

HI 755 Checker®HC is supplied with (2) sample cuvettes with caps, liquid reagents for alkalinity (25 tests approx.), syringe with tip, ­­­battery and instructions.

HI764 Checker®HC Handheld Colorimeter - Nitrite Ultra Low Range by Hanna Instruments

The HANNA HI 764 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 764 Checker®HC is accurate and affordable.

The HI 764 Checker®HC portable handheld colorimeter features a resolution of 1 ppb and uses an adaptation of EPA Diazotization method 354.1.

The contoured style of this Checker®HC fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.

The HI 764 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the HI 764 Checker®HC, press the button and read the results. It’s that easy.

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for Aquaculture

Order Information:

HI 764 Checker®HC is supplied with sample cuvettes with caps (2), powder reagents for Nitrite (6), battery and instructions.

HI706 Checker®HC Handheld Colorimeter - Phosphorus High Range by Hanna Instruments

Phosphorus concentration in water is monitored because it causes corrosion when present in levels too high.

The HANNA HI 706 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. The HANNA HI?706 (for fresh water applications) is both accurate and affordable.

The HI 706 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagents. Last, place the vial into the Checker®HC, press the button and read the results. It’s that easy.

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for Aquaculture (fresh water applications)

Order Information:

HI 706 Checker®HC is supplied with sample cuvettes with caps (2), reagents for 20 tests, battery and instructions.

HI761 Checker®HC Handheld Colorimeter - Total Chlorine Ultra-Low Range by Hanna Instruments

The HI 761 Checker®HC is a simple, accurate, and cost effective way to measure ultra-low ranges of total chlorine. Designed as a more accurate alternative to chemical test kits, the HI 761 provides quick, accurate results in four easy steps.

1.) Step One - Add a sample to the included cuvette(s)
2.) Step Two - Insert sample into the Checker and zero it out
3.) Step Three - Remove sample and add reagent
4.) Step Four - Reinsert sample and click the button to measure your results or… - Press and hold the button for 3 seconds for a time reaction reading

The HI 761 uses an adaptation of the USEPA method 330.5. The reaction between the chlorine and DPD reagent causes a pink tint in the sample.

Features/Benefits:

• Small palm-sized design
• Accurate from ±5ppb ± 5% of reading
• Dedicated to a single parameter
• Uses a single AAA battery
• Auto Power Off after 10 minutes in inactivity
• Built-in timer for timed reaction readings

Primary Applications:

• Water Quality
• Education
• Water Purification
• Environmental

Order Information:

The HI 761 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (6 packets for total chlorine ultra-low range), 1 x 1.5V AAA battery, and an instruction manual.

HI771 Checker®HC Handheld Colorimeter - Chlorine Ultra High Range by Hanna Instruments

The HI 771 Checker®HC is a simple, accurate, and cost effective way to measure ultra-high ranges of chlorine. Designed as a more accurate alternative to chemical test kits, the HI 771 provides quick, accurate results in four easy steps.

1.) Step One - Add a sample to the included cuvette(s)
2.) Step Two - Insert sample into the Checker and zero it out
3.) Step Three - Remove sample and add reagent
4.) Step Four - Reinsert sample and click the button to measure your results or… - Press and hold the button for 3 seconds for a time reaction reading

The HI 771 uses an adaptation of the standard methods for water and wastewater 4500Cl.

Features/Benefits:

• Small palm-sized design
• Accurate from ±3 ppm ± 5% of reading
• Dedicated to a single parameter
• Uses a single AAA battery
• Auto Power Off after 10 minutes in inactivity
• Built-in timer for timed reaction readings

Primary Applications:

• Water Quality
• Education
• Food Processing
• Hospitality
• Sanitization

Order Information:

The HI 771 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit, and an instruction manual.

HI749 Checker®HC Handheld Colorimeter - Chromium VI LR by Hanna Instruments

The HI 749 Checker®HC is a simple, accurate, and cost effective way to measure low ranges of chromium VI in fresh water. Designed as a more accurate alternative to chemical test kits, the HI 749 provides quick, accurate results in four easy steps.

1.) Step One - Add a sample to the included cuvette(s)
2.) Step Two - Insert sample into the Checker and zero it out
3.) Step Three - Remove sample and add reagent
4.) Step Four - Reinsert sample and click the button to measure your results or… - Press and hold the button for 3 seconds for a time reaction reading

The HI 749 uses an adaptation of the ASTM Manual of Water and Environmental Technology, D1687-92, Diphenylcarbohydrazide method. The reaction between chromium VI and the reagent causes a purple tint in the sample.

Features/Benefits:

• Small palm-sized design
• Accurate from ±3 ppb ±5% of reading
• Dedicated to a single parameter
• Uses a single AAA battery
• Auto Power Off after 10 minutes in inactivity
• Built-in timer for timed reaction readings

Primary Applications:

• Water Quality
• Education
• Plating
• Environmental

Order Information:

The HI 749 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (6 packets of chromium VI LR reagent), 1 x 1.5V AAA battery, and an instruction manual.

HI708 Checker®HC Handheld Colorimeter - Nitrite HR by Hanna Instruments

The HI 708 Checker®HC is a simple, accurate, and cost effective way to measure high ranges of nitrite. Designed as a more accurate alternative to chemical test kits, the HI 708 provides quick, accurate results in four easy steps.

1.) Step One - Add a sample to the included cuvette(s)
2.) Step Two - Insert sample into the Checker and zero it out
3.) Step Three - Remove sample and add reagent
4.) Step Four - Reinsert sample and click the button to measure your results or… - Press and hold the button for 3 seconds for a time reaction reading

The HI 708 uses an adaptation of the Ferrous Sulfate method. The reaction between nitrite and the reagent causes a greenish/brown tint in the sample.

Features/Benefits:

• Small palm-sized design
• Accurate from ±3 ppm ±5% of reading
• Dedicated to a single parameter
• Uses a single AAA battery
• Auto Power Off after 10 minutes in inactivity
• Built-in timer for timed reaction readings

Primary Applications:

• Water Quality
• Education
• Aquarium
• Wastewater
• Environmental

Order Information:

The HI 708 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (6 packets of reagent), 1 X 1.5X AAA battery, and an instruction manual.

HI715 Checker®HC Handheld Colorimeter - Ammonia Medium Range by Hanna Instruments

The HI 715 Checker®HC is a simple, accurate, and cost effective way to measure medium ranges of ammonia in fresh water. Designed as a more accurate alternative to chemical test kits, the HI 715 provides quick, accurate results in four easy steps.

1.) Step One - Add a sample to the included cuvette(s)
2.) Step Two - Insert sample into the Checker and zero it out
3.) Step Three - Remove sample and add reagent
4.) Step Four - Reinsert sample and click the button to measure your results or… - Press and hold the button for 3 seconds for a time reaction reading

The HI 715 uses an adaptation of the ASTM Manual of water and Environmental Technology D1426-93, Nessler Method. The reaction between ammonia and reagents causes a yellow tint in the sample.

Features/Benefits:

• Small palm-sized design
• Accurate from ±0.05ppm ±5% of reading
• Dedicated to a single parameter
• Uses a single AAA battery
• Auto Power Off after 10 minutes in inactivity
• Built-in timer for timed reaction readings

Primary Applications:

• Water Quality
• Education
• Aquarium
• Environmental

Order Information:

The HI 715 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (1 bottle of HI 715A-0 and 1 bottle of HI 715B-0), 1 x 1.5V AAA battery, and an instruction manual.

HI716 Checker®HC Handheld Colorimeter - Bromine by Hanna Instruments

The HI 716 Checker®HC is a simple, accurate, and cost effective way to measure Bromine. Designed as a more accurate alternative to chemical test kits, the HI 716 provides quick, accurate results in four easy steps.

1.) Step One - Add a sample to the included cuvette(s)
2.) Step Two - Insert sample into the Checker and zero it out
3.) Step Three - Remove sample and add reagent
4.) Step Four - Reinsert sample and click the button to measure your results or… - Press and hold the button for 3 seconds for a time reaction reading

The HI 716 uses an adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, DPD method. The reaction between bromine and the reagent causes a pink tint in the sample.

Features/Benefits:

• Small palm-sized design
• Accurate from ±0.1 ppm ±5% of reading
• Dedicated to a single parameter
• Uses a single AAA battery
• Auto Power Off after 10 minutes in inactivity
• Built-in timer for timed reaction readings

Primary Applications:

• Water Quality
• Education
• Swimming Pools/Hot Tubs Sanitization
• Environmental

HI775 Checker®HC Handheld Colorimeter - Alkalinity for Fresh Water by Hanna Instruments

The HI 775 Checker®HC is a simple, accurate, and cost effective way to measure alkalinity in fresh water. Designed as a more accurate alternative to chemical test kits, the HI 775 provides quick, accurate results in four easy steps.

1.) Step One - Add a sample to the included cuvette(s)
2.) Step Two - Insert sample into the Checker and zero it out
3.) Step Three - Remove sample and add reagent
4.) Step Four - Reinsert sample and click the button to measure your results or… - Press and hold the button for 3 seconds for a time reaction reading

The HI 775 uses a colorimetric method. The reaction causes a distinctive range of colors from yellow to blue to develop. This meter has been developed to work with fresh water samples.

Features/Benefits:

• Small palm-sized design
• Accurate from ±5ppm ± 5% of reading
• Dedicated to a single parameter
• Uses a single AAA battery
• Auto Power Off after 10 minutes in inactivity
• Built-in timer for timed reaction readings

Primary Applications:

• Water Quality
• Education
• Freshwater Aquarium
• Environmental

Order Information:

The HI 775 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (1 bottle of alkalinity reagent, 1 ml syringe), 1 x1.5V AAA battery, and an instruction manual.

HI726 Checker®HC Handheld Colorimeter - Nickel High Range by Hanna Instruments

Nickel is extensively used in electroplating, the manufacturing of steel, electronic devices, ceramics and colored glasses. It plays a vital role in many processes of applied sciences and fundamental sciences. It necessitates development of rapid methods for estimation of nickel.

The HI 726 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent, shake gently until complete dissolution. Last, place the vial into the Checker®HC, press the operational button for about 3 seconds. The display will show the countdown prior to the measurement or, alternatively, wait for 1 minute and press operational button. When the timer ends the meter will perform the reading and display concentration in g/L of nickel. It’s that easy.

• Easier to use and more accurate than chemical test kits
• Accurate from ±5ppm ± 5% of reading
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for Steel manufacturing, electroplating and electronics production

Order Information:

HI 726 Checker®HC is supplied with sample cuvettes with caps (2 ea.), powder reagents for Nickel HR (6), battery and instructions.

HI717 Checker®HC Handheld Colorimeter - Phosphate High Range by Hanna Instruments

Orthophosphates are found in natural and wastewaters. They are commonly added to drinking water as a corrosion inhibitor. The instantaneous analysis of orthophosphate by colorimetric determination provides rapid results using a standard analysis technique.

The HANNA HI 717 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give only a few resolution points, while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 717 Checker®HC is accurate and affordable.

The HI 717 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagents. Last, place the vial into the Checker®HC, press the button and read the results. It’s that easy.

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for Aquaculture, natural, waste, drinking waters and agriculture

Order Information:

HI 717 Checker®HC is supplied with sample cuvettes with caps (2), reagents for 20 tests, battery and instructions.

HI723 Checker®HC Handheld Colorimeter - Chromium VI High Range by Hanna Instruments

There are two natural forms of ionic chromium, the hexavalent ion, Cr (VI) and the trivalent Cr (III). Cr (III) is much less toxic than Cr (VI) and seldom found in potable waters. Cr (VI), however, is toxic to humans and is found in water. Even though the toxic effects from Cr (VI) in drinking water are not well documented, it is a suspected carcinogen. The maximum permissible level or Cr (VI) allowed to be released into the waterways is 50 ppb. Its level in drinking water is normally much lower and a lever higher than 3 ppb is suggestive of industrial pollution.

By monitoring this parameter with the HANNA HI 723 Checker®HC, serious health and safety risks can be avoided.

The HI 723 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent, shake vigurosly for 10 seconds. Last, place the vial into the Checker®HC, press the operational button for about 3 seconds and the display will show the countdown prior to the measurement or, alternatively, wait for 6 minutes and press operational button. When the timer ends the meter will perform the reading. The Checker®HC displays concentration in ppb of chromium VI. It’s that easy.

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for Water Quality

Order Information:

HI 723 Checker®HC is supplied with sample cuvettes with caps (2 ea.), power reagents for chromium VI HR (6), battery and instructions.

HI701 Checker®HC Handheld Colorimeter - Free Chlorine by Hanna Instruments

The HANNA HI 701 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 701 Checker®HC is accurate and affordable.

This Checker®HC portable handheld colorimeter features a resolution of 0.01 ppm and ±0.03 ppm (mg/L) ±3% of reading accuracy. It also uses an EPA approved DPD method.

The contoured style of the Checker®HC fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.

The HI 701 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the Checker®HC, press the button and read the results. It’s that easy.

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for Swimming pools and spas, fruit and vegetable sanitation, disinfection, drinking water and quality control checks

Order Information:

HI 701 Checker®HC is supplied with sample cuvettes with caps (2), powder reagents for Free Chlorine (6), battery and instructions.

HI711 Checker®HC Handheld Colorimeter - Total Chlorine by Hanna Instruments

The HANNA HI 711 Checker® HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI?711 Checker®HC is accurate and affordable.

This Checker®HC portable handheld colorimeter features a resolution of 0.01 ppm and ±0.03 ppm (mg/L) ±3% of reading accuracy. It also uses an EPA approved DPD method.

The contoured style of the Checker®HC fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.

The HI 711 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the Checker®HC, press the button and read the results. It’s that easy.

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for Swimming pools and spas, fruit and vegetable sanitation, disinfection, drinking water and quality control checks

Order Information:

HI 711 Checker®HC is supplied with sample cuvettes with caps (2), powder reagents for Total Chlorine (6), battery and instructions.

HI739 Checker®HC Handheld Colorimeter - Fluoride High Range by Hanna Instruments

Fluoride is one of the very few chemicals that have been shown to cause significant effects in people through drinking-water. Fluoride has beneficial effects on teeth at low concentrations in drinking-water, but excessive exposure to fluoride in drinking-water, or in combination with exposure to fluoride from other sources, can give rise to a number of adverse effects.

Water fluoridation is the controlled addition of fluoride to a public water supply to reduce tooth decay. Fluoridated water operates on tooth surfaces: in the mouth it creates low levels of fluoride in saliva, which reduces the rate at which tooth enamel demineralizes and increases the rate at which it remineralizes in the early stages of cavities.

A 1994 World Health Organization expert committee suggested a level of fluoride from 0.5 to 1.0 mg/L, depending on climate. Bottled water typically has unknown fluoride levels, and some domestic water filters remove some or all fluoride.

The HI 739 Checker®HC is simple to use. In one vial add 2 ml of Reagent A and 8 ml of Reagent B; gently invert 5 times, and wait 1 minute, then zero the instrument with the vial. After zeroing, remove the vial and add 1 ml of sample, gently invert 5 times, wait 1 minute, then insert the cuvette into the HI 739 Checker®HC and press the read button for results.

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience

Order Information:

HI 739 Checker®HC is supplied with sample cuvettes with caps (2), reagents for 4 tests, syringe with tip, pipette, battery and instructions.