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BW Technologies GasAlertQuattro 4-Gas Detector %LEL, O2, H2S, CO - Alkaline Version - Yellow Housing

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BW Technologies GasAlertQuattro 4-Gas Detector %LEL, O2, H2S, CO - Alkaline Version - Yellow Housing

BW Technologies GasAlertQuattro 4-Gas Detector %LEL, O2, H2S, CO - Alkaline Version - Yellow Housing


QT-XWHM-A-Y-NA GasAlertQuattro 4-Gas Detector %LEL, O2, H2S, CO - Alkaline Version - Yellow Housing by BW Technologies

The GasAlert Quattro is a fully functioning 4 gas detection unit that is both durable and reliable. With a rugged yellow outer casing and built-in concussion proof boot, the gas detector is built to withstand harsh environments and accidental drops. Engineered with the most advanced technology available, the GasAlert Quattro is the industry's first choice in gas detection.

Design simplicity

The most distinct feature of the GasAlert Quattro is its easy to read display and gas indicators. The unit houses a large LCD display that provides constant visual confirmation of operation, gas monitoring, and compliance. The easy to read screen largely displays real time gas concentrations for H2S, CO, O2, and combustible gases. Each gas alarm set point is fully user adjustable. The unit also features a simple intuitive one button operation that minimizes training costs and requirements. With the touch of a button, users can operate a variety of standard features, including standard operating language in English, Spanish, French, German, and Portuguese.

Standard features

Like many BW Technologies by Honeywell products, the GasAlert Quattro features a triple alarm system to alert users of hazardous atmospheric conditions. Wide ultra-bright alarm bars that are visible at multiple angles and when stored in pockets, audible alarms of over 95 decibels, and a high intensity vibrating alarm ensure that workers will be appropriately alerted regardless of the working conditions or sensory impairments. On activation, the GasAlert Quattro will automatically perform a variety of tests including sensor integrity, circuitry, battery, and alarm functioning. Additionally, the unit performs continuous monitoring on sensor and battery functioning to ensure the integrity and reliability of the device. For quick use and low maintenance, the GasAlert Quattro is equipped with an interchangeable and fully rechargeable battery pack. The unit may also be powered by an alkaline pack of 3 AA batteries.

To ensure constant security, each unit is equipped with IntelliFlash that provides continuous confirmation of the unit's operation. This particular series utilizes a flashing green LED. Users and safety managers are constantly apprised of the safety of their workers and the functioning of their security devices.

Powered by SureCell Sensors

Utilizing the most advanced technology available, Honeywell's SureCell Sensor is a revolution in electrochemical technology. The patented cell technology is designed to detect a wide range of toxins while maintaining a resistance to common industrial gas interference errors. This focus on detection integrity improves sensor performance and reliability.

Compatibility, options, and accessories

For easy calibration and bump testing, the GasAlert Quattro is fully compatible with BW's MicroDock II automatic test and calibration system. Users can customize their GasAlert Quattro with additional accessories including a carrying holster, auxiliary filter, and vehicle attachment. The unit is also capable of complete datalogging and record keeping.


GasAlert Quattro is highly transportable weighing between 11 and 12 ounces, depending on the attached battery pack. The gas detector also features a long shelf and battery life. Users can expect up to 14 hours of battery life with the AA battery pack and up to 18 to 20 hours with the rechargeable battery pack. A 2 year warranty is standard with every GasAlert Quattro purchase.


GasAlertQuattro Specifications:
Size 5.1 x 3.2 x 1.9 in. / 13.0 x 8.1 x 4.7 cm
Weight - 11.15 oz. / 316 g (with rechargeable battery pack)
- 11.92 oz. / 338 g (with alkaline battery pack)
Temperature -4 to +122F / -20 to +50C
Humidity 10% - 100% RH (non-condensing)
Alarms - Visual (six, red LEDs), vibrating, audible (95dB)
- Low, High, STEL, TWA, OL (over limit)
Tests Sensor integrity, circuitry, battery and audible/visual alarms on activation, battery (continuous), sensor (continuous)
Pump Compatible with the Sampler motorized sampling pump
Battery life AA alkaline: 14 hrs (+68 to 122F / +20 to 50C)
Rechargeable: 20 hrs (+68 to 122F / +20 to 50C), 18 hrs (-4 to +32F / -20 to 0C)
User options Confidence / Confidence beep, Confidence flash, Set STEL interval, Sensor on/off, Latching alarms, Safe display mode, Force calibration, Auto-zero on start up, Flip display, Combustible gas measurement (% LEL or % by volume methane), User-definable calibration gas concentration, Force bump, Language choices (five), Custom start up message, Datalog interval
Warranty Full two year warranty including all sensors

Sensor Specifications:
Gas Measuring Range Resolution
Hydrogen sulfide (H2S) 0-200 ppm 0.1 ppm
Carbon monoxide (CO) 0-1000 ppm 1 ppm
Oxygen (O2) 0-30.0% 0.1%
Combustible gases (%LEL) 0-100% LEL
0-5.0% v/v

Datasheets & User Manuals

    GasAlertQuattro Datasheet

    GasAlertQuattro Manual

    GasAlertQuattro Accessories Datasheet

    GasAlertQuattro Order Info

    GasAlertQuattro Sales Presentation

    GasAlertQuattro Sure Cell Technology

Questions & Answers

3 Questions & 3 Answers
from Canada asked:
November 28, 2019
Why would the meter read a negative Carbon Monoxide level? Unit has current calibration (140+ days left). has occurred several times, power cycling seems to work but the malfunction has happened several times
1 Answer

Hi Dave,

Thank you for your question. The CO sensor will need to have a hard zero performed. Please hold down the button and keep holding the button, the instrument will turn off but keep holding the button. After a few seconds the instrument will turn back on and will start zeroing the sensors. After this process it will prompt you to apply gas, when you see this prompt press the blue button to cancel calibration. After this the instrument will go back to the normal readings mode screen and all the sensors should be zeroed. If this doesn't solve the problem then the next thing to try is a full calibration. If the problem still happens after that then the sensor more than likely needs replaced. Also, another thing to note is to only turn the instrument on in a clean atmosphere away from any carbon monoxide, such as a garage with running engines. The reason for this is that the instrument zeroes itself anytime you turn it on, so if there is 10 ppm of CO present and the instrument is turned on, it will zero the instrument at 10 ppm. Then when you go into a clean atmosphere the instrument will go to -10ppm.

If we can help with anything else please let us know.

Submitted by: Joe Spratley on December 2, 2019

from Easthampton MA asked:
December 8, 2016
Is there a procedure to adjust the date and time? I can not find it in any of the manuals?
1 Answer
To change the date and time, you need to connect the meter to your computer using the IR Link cable (sold separately here: www.jjstech.com/ga-usb1-ir.html) and use the free Fleet Manager II software. Load the Quattro settings and press the Adjust Date/Time button.
Submitted by: Customer Service on December 9, 2016

Jodie Fedorak
from Bonnyville, Alberta asked:
May 24, 2013
Hello, I use this product everyday in my current job. I am wondering if you can tell me where to properly position the monitor would be? on the waist? on the pocket of overalls? etc...Thank You
1 Answer
The monitor is meant to be worn in the closest proximity to your "breathing zone". BW offers several different options for wearing the gas detector such as arm bands, chest harnesses, neck lanyards, & carrying holsters. The monitor also has a stainless steel alligator clip & ring on the back of the monitor. The best way to answer is to say that the monitor should be worn in your breathing zone where it's most comfortable & won't interfere with your job functions.
Submitted by: Customer Service on May 28, 2013