5 Things You Need To Know About BW Quattro

BW Quattro was rugged and reliable. The BW Gas Alert Quattro four-gas detector combines a comprehensive range of features with simple one-button operation.

What made BW Quattro a great option for gas detection

The GasAlertQuattro is always ready. The graphic LCDs have easy-to-identify icons that indicate operational information, such as bump test and calibration status, for simplified onsite auditing.

IntelliFlash provides continuous visual confirmation of detector operation and compliance. It is suited to a wide range of industrial applications, including confined space entry.

5 Things You Need To Know About BW Quattro

Even though Honeywell has decided to discontinue the Gas Alert Quattro gas detector, here are five things you need to know about BW Quattro.

BW GasAlert Quattro is Light Weight and Rugged

Although this multi-gas detector has a tough, rugged-looking exterior, it’s lightweight, weighing a mere 338 grams. This means it not only feels good in the hand but isn’t cumbersome when attached to clothing.

The housing is robust and IP 66/67 rated, which means it is protected against certain particle and water ingress levels.

BW GasAlert Quattro Features High-Performance Sensors

Features four powerful SureCell sensors.  These high-performing sensors mean you can simultaneously measure LEL, H2S, CO, and oxygen deficiency levels per the following parameters:

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


The default alarm settings for the sensors are the following.

Oxygen (O2) 19.5% vol 23.5% vol N/A N/A
Carbon Monoxide (CO) 25 ppm
25 ppm 
200 ppm
Hydrogen Sulfide (H2S) 10 ppm 20 ppm 10 ppm 15 ppm


BW GasAlert Quattro Has a Long-Lasting Battery

One common issue among gas detectors is their ability to hold a charge during operation. Some detectors require frequent charging, which can cause your detection to be interrupted during the day.

You do not have this issue with the BW Quattro. The rechargeable version’s battery lasts around 20 hours between charges.

The version supplied with an alkaline battery has a run time of around 14 hours. Both of these are long enough to last a typical working day.

Ease of Use

With its bright, rugged housing, the BW GasAlert Quattro certainly looks the part. However, it’s also easy to use, thanks to the simple, one-button operation.

As a result, very little training on using the unit is required before you’re ready to clip it on and be kept safe by it.

The large, backlit graphical screen shows real-time readings. When you turn it on, it runs a full function test on all four sensors, plus the battery and alarms.

You can use it for confined space.

Gas Alert Quattro can be used for confined space applications because it can detect all four common gases in confined spaces (O2, LEL, CO, and H2S) and comes with a confined space kit.

The part number for the Gas Alert Quattro with confined space kit is QT-XWHM-R-Y-NA-CS.

GasAlertQuattro Confined Space Kit – includes GasAlertQuattro detector (% LEL, O2, H2S, CO), rechargeable battery pack and power adapter, alkaline battery pack and AA batteries, IR connectivity kit, manual aspirator kit, sampling probe, calibration cap with 1 ft. / 0.3 m hose, calibration gas (2.5% CH4,18% O2, 25 ppm H2S, 100 ppm CO) and 0.5 LPM regulator.

FAQ: BW Quattro

Can I still purchase a Gas Alert BW Quattro

No, BW Quattro has been discontinued. The recommended replacement will be the Microclip XL series.

What is the replacement for Gas Alert Quattro?

The recommended replacement for Gas Alert BW Quattro will be the Microclip XL series.

What is the recommended bump test frequency for the Gas Alert BW Quattro?

Honeywell recommends calibrating the Gas Alert BW Quattro before using the detector.

What is the BW Gas Alert Quattro calibration frequency?

It is recommended that Honeywell gas alert Quattro be calibrated every 180 days.

How to calibrate BW GasAlert Quattro?

The video below will show you how to calibrate the BW GasAlert Quattro.

Final words

That’s the Top 5 Things you need to know about the BW GasAlert Quattro. 

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