Need Help? Call a Temperature Engineer 1-800-884-4967

We're open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET

Instrumart is an authorized BW Technologies Distributor Service Center for warranty or non-warranty repairs & calibrations.


  • Continuous LCD shows real-time gas concentrations
  • Compact and lightweight design
  • Simple automatic calibration procedure
  • Compatible with BW MicroDock II automatic station
  • Full function self-test at start up:
    • Sensor, battery status, circuit integrity & alarms
  • Bright wide-angled visual alarm bars
  • Built-in concussion-proof boot

What's in the Box

  • Specified sensor
  • Stainless steel alligator clip
  • Concussion-proof housing
  • Calibration/test cap and hose
  • Manual and multi-language manual CD

The BW Technologies GasAlert Extreme single gas detector reliably monitors for any single gas hazard within its wide range of available toxic gas models. Gases that can be monitored include:

  • Ammonia (NH3)
  • Carbon Monoxide (CO)
  • Chlorine (Cl2)
  • Chlorine Dioxide (ClO2)
  • Ethylene Oxide (ETO) (C2H4O)
  • Hydrogen Cyanide (HCN)
  • Hydrogen Sulfide (H2S)
  • Nitrogen Dioxide (NO2)
  • Nitric Oxide (NO)
  • Oxygen (O2)
  • Ozone (O3)
  • Phosphine (PH3)
  • Sulfur Dioxide (SO2)

With easy on/off operation, BW Technologies GasAlert Extreme single gas detector offers extended longevity with a two year field-replaceable battery and sensor. Calibration is a simple automatic procedure and is compatible with BW Technologies' MicroDock II automatic test and calibration system. A wide range of user options, multi-language display and data logging functionality make the GasAlert Extreme an ideal solution for many applications.

Docking Station

BW Technologies MicroDock II Test/Calibration Docking System
Manages calibration, bump testing, and data logging of BW Technologies gas detectors
In Stock


BW Technologies REG-DF-1 Demand Flow Regulator
Flow regulator for use with BW docking systems
In Stock
BW Technologies Calibration & Repair Services
Authorized warranty and non-warranty service for most BW Technologies gas detectors
Call for pricing


BW Technologies GasAlertClip Alligator Clip
Stainless steel alligator-style clip for both GasAlertClip extreme gas detector & GasAlert extreme single gas detector
BW Technologies GasAlert Chest Harness
Safe and convenient option for housing the GasAlert gas detector during use
BW Technologies GasAlertClip Belt Clip
BW Technologies GasAlert Extension Strap
4ft (1.2m) extension strap easily extends the reach for GasAlert gas detectors
BW Technologies GasAlert Hard Hat Clip
Non-conductive hard hat clip allows users to easily attach the GasAlert gas detector to any hard hat
BW Technologies GasAlert Neck Strap
Neck strap with safety release to carry the GasAlert gas detector


BW Technologies Replacement Sensors
BW Technologies replacement sensors for the GasAlert Max XT II, Micro 5 series, GasAlertQuattro, GasAlert Extreme and MicroClip XT or XL
In Stock


BW Technologies GasAlert Spare Battery


BW Technologies GasAlert Extreme Protective Boot
Concussion-proof boot with stainless steel alligator clip


Please consider these optional accessories.

BW Technologies GasAlert Pump Kit
Manual aspirator pump kit with probe (1 ft./0.3 mi)
In Stock
BW Technologies GasAlert IR DataLink USB Adaptor
High speed adaptor required to download information to your PC
BW Technologies GA-VM-2 Vibrator Motor
Replacement vibrator motor


This product can be used in the following applications: