BW Honeywell GasAlertMax XT II, LEL/O2/CO/H2S, integrated pump




Honeywell BW GasAlertMax XT II – Multi 4 Gas Detector With Pump

Honeywell BW GasAlertMax XT II gas monitor monitoring up to four gases. One-button operation and fully compatible with the MicroDock II. Water-resistant, rechargeable battery and simple automatic calibration procedure are among its many features.

Reliably monitors for up to four gas hazards 

The rugged GasAlertMax XT II reliably monitors for up to four gas hazards and combines straightforward one-button field operation with an integrated sampling pump. Tamper-proof, user-adjustable options enable the instrument to be customized to suit your application. Confined space entry and remote sampling have never been so easy with new, intelligent SmartSample pump technology. Minimise pump blockages and improve remote sampling result accuracy.

Powered by a rechargeable battery pack that provides runtime for an entire 13 hour shift, the compact GasAlertMax XT II comes with standard event logging and datalogging. The GasAlertMax XT II is fully compatible with the MicroDock II automated test and calibration system.

The BW GasAlertMax XT II can be configured to monitor combinations of the following gases:

Combustible %LEL, Oxygen (O2), Carbon Monoxide (C0), Hydrogen Sulfide (H2S)

There are also a wide range of accessories available for this unit which can be found on our accessories and spares section.

Features & Benefits

  • Monitors H2S, CO, O2 and combustibles
  • One-button operation with robust, motorized pump
  • Compatible with MicroDock II


  • Size: 5.1 x 2.8 x 2.0 in. / 13.1 x 7.0 x 5.2 cm
  • Weight: 11.5 oz. / 328 g
  • Temperature: -4 to 122°F / -20 to 50°C

Standard Package Contents

  •  Detector complete with specified sensor(s), stainless steel alligator clip and concussion-proof housing
  • Rechargeable lithium polymer battery
  • Charging adaptor
  • 3 ft. / 1 m calibration hose with quick connect
  • 10 ft. / 3 m sampling hose with particulate filter and quick connect
  • Reversible screwdriver
  • Kit of five spare pump filters
  • Manual
  • Multi-language CD manual

Standard features of BW products:

  • Continuous LCD shows real-time gas concentrations
  • Compact and lightweight design makes it comfortable to wear
  • Water-resistant
  • Simple automatic calibration procedure; compatible with BW MicroDock II automatic test and calibration station
  • Full function self-test of sensor, battery status, circuit integrity and audible/visual alarms on start up
  • Bright wide-angled visual alarm bars
  • Built-in concussion-proof boot


BW Honeywell

ANH VU Gas detection Corporation is authorization distributor for BW Technologies by Honeywell (BW Honeywell). We cover all BW lines of gas detector include GasAlert Extreme, GasAlert Clip Extreme, GasAlert Quattro, GasAlert Max XT II, GasAlert Microclip XT-XL-X3, GasAlert Micro 5, Gas Alert Micro 5 PID and IR, Microdock II, and all of the replacement sensors, parts, calibration gas, and accessories We also supply all related service for BW Gas detector which We supply ie: Replace parts, Annual calibration, Maintenance...  


Sensor Specification:

Gas H2S CO O2 LEL (combustible)
Measuring Range 0 – 200 ppm (1 ppm increments) 0 – 1000 ppm (1 ppm increments) 0 – 30.0% vol. (0.1% vol. increments) 0 – 100% LEL (1% LEL increments) or 0 – 5.0% v/v methane
Sensor type Single plug-in electrochemical cell Plug-in catalytic bead

GasAlertMax XT II specification:

Instrument dimensions 13.1 x 7.0 x 5.2 cm (5.1 x 2.8 x 2.0 in.)
Weight 300 g (10.6 oz.)
Operating temperature -20°C to +50°C (-4°F to +122°F)
Storage temperature -40°C to +60°C (-40°F to +140°F)
Operating humidity 10% to 100% relative humidity (non-condensing)
Dust and moisture ingress IP666/67
Alarm setpoints May vary by region and are user-defined
O2 measuring principle Capillary controlled concentration sensor
Alarm conditions TWA alarm, STEL alarm, low alarm, high alarm, multi-gas alarm, over limit (OL) alarm, low battery alarm, confidence beep, automatic deactivation alarm, pump alarm
Audible alarm 95 dB+ at 30 cm variable pulsed beeper with full battery charge
Visual alarm Red light-emitting diodes (LEDs)
Display Alphanumeric liquid crystal display (LCD)
Backlight Activates upon startup and when the pushbutton is pressed; deactivates after 10 seconds. Activates during an alarm condition and remains lit until alarm ceases
Self-test Initiated during activation, self-test runs continuously while detector is operational
Calibration Automatic zero and automatic span
User field options Startup message, lockout on self-test error, safe mode, confidence beep, latching alarm, force calibration, cal IR lock, force bump, location logging, force block test, set datalog interval, set confidence interval, language selection.
Sensor Options Sensor enable/disable, set span concentration values, set calibration interval, set bump interval, set alarm setpoints, set STEL interval, set TWA period, auto zero at startup enable/disable, 5% overspan, low alarm acknowledge, oxygen measurement, and combustible gas measurement





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