GasAlert Quattro

Rugged and reliable, the GasAlert Quattro four-gas detector combines a comprehensive range of features with simple one-button operation. With flexible power options, the GasAlertQuattro is always ready.

The graphic LCD displays 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. Suited to a wide range of industrial applications including confined space entry.

The GasAlert Quattro

GasAlert Quattro

Portable Multi-Gas Detector

The BW Honeywell GasAlert Quattro 4 Gas Monitor features a large, clear screen so you can continuoåusly monitor the levels of the gases and check to make sure the device is functioning (a small heartbeat indicates everything is okay). The Quattro's IntelliFlash system gives you continuous information as to the operational state of the device, so you can be sure that it is active and keeping you and your team safe. The Quattro Gas Monitor has four full-sized sensors to detect oxygen (and any serious atmospheric changes therein), hydrogen sulfide (H2S), carbon monoxide (CO) and the LEL of a variety of dangerous flammable/combustible gases (LEL).

Should anything troublesome occur while you are on the job, the BW Quattro's 95dB alarm, vibration alert and an array of warning lights will let you know. The BW Quattro is ideal for confined space entry and comes calibrated with a fully charged battery and ready to use out of the box. The Quattro we stock comes with changeable rechargeable batteries, offering hours of run time. Should it be needed, you can easily swap the batteries for alkalines in the field, though this does require purchasing the alkaline battery pack. A hex Allen screw keeps the battery in place until a change is needed.

  • Compact and lightweight design

  • Simple one-button operation

  • Compatible with MicroDock II

  • Built-in concussion-proof boot

  • Bright wide-angled visual alarm bars

Compact and lightweight design

Powered by an interchangeable rechargeable battery pack or alkaline pack with 3 AA batteries

Simple one-button operation

One-button operation and straightforward user interface minimizes training

Compatible with MicroDock II

4 channel monitor with 4 sensors while the Micro is a 3 channel monitor that uses an H2S/CO combo sensor.


Minimum Temperature
20 degree Fahrenheit
4 degree Celsius
Battery Run Time
14-20 hours
User Options
Confidence beep
Class I, Div. 1, Gr. A, B, C, D
Instrument Size
5.1 x 3.2 x 1.9 in. / 13.0 x 8.1 x 4.7 cm
Audible, Visual, Vibrating.


Maximum Temperature
122 degree Fahrenheit
50 degree Celsius
Gas Type
H2S, CO, O2, LEL
Full two-year warranty including all sensors
Ingress Protection
360 hours at 15-second intervals
11.5 oz
316 grams

Sensor Specifications

H2S0-200 ppm0.1 ppm
CO0-1000 ppm1 ppm

BW Quattro User Guide

BW GasAlert Quattro from BW Technologies - Key Features and Spec