Calibration & Maintenance Solutions

HI7040L Zero Oxygen Solution by Hanna Instruments

Zero Oxygen Solution for Performing D.O. Measurements:

• HI 7040-1, 1st componet: dry chemical reagent 35 mL bottle
• HI 7040-2, 2nd componet: solvent in bottle 500 mL bottle

Please note: the mixture can be used for one month.

Order Information:

1 HI 7040-1: dry chemical reagent in 35 mL bottle.
1 HI 7040-2 solvent in bottle 500 mL bottle.

HI7041S Refilling Electrolyte Solution, 30 mL by Hanna Instruments

Electrolyte Solution for Polargraphic D.O. Probes

Order Information:

30 mL bottle

HI7041M Refilling Electrolyte Solution, 230 mL by Hanna Instruments

Electrolyte Solution for Polargraphic DO Probes

Order Information:

230 mL bottle

HI7041L Refilling Electrolyte Solution, 500 mL by Hanna Instruments

Electrolyte Solution for Polargraphic DO Probes

Order Information:

500 mL bottle

HI7042S Electrolyte Solution for Galvanic Probes by Hanna Instruments

HI 7042S electrolyte solution for galvanic probes is crucial for the performance of the probe and to keep the sensor active.

Order Information:

30 mL bottle