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GasAlert Extreme Single toxic gas detector



GasAlert Extreme Single toxic gas detector, designed with durability and comfort in mind, this gas detector monitors for any single gas hazard within its wide range of available toxic gas models.

Features & Benefits

  • Equipped with internal vibrating alarm for high noise areas
  • Secure and accurate history with datalogging option
  • Multi-language support in English, French, German, Spanish, and Portuguese

GasAlert Extreme Specs

  • Size:1.1 x 2.0 x 3.75 in./ 2.8 x 5.0 x 9.5 cm
  • Weight:2.9 oz./ 82 g
  • Alarms: visual, vibrating, audible (95dB)- Low, High, TWA and STEL
  • Tests: Sensor integrity, circuitry, battery and audible/visual alarms on activation, battery (continuous)
  • Pump: Compatible with the Sampler motorized pump
  • Typical battery life:1.5 year battery life (typical) with replaceable 3V battery

Product Overview

With easy on/off operation, this 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 by Honeywell’s MicroDock II automatic test and calibration system. A wide range of user options, multi-language display and datalogging functionality make the GasAlert Extreme an ideal solution for many applications.

Additional GasAlert Extreme features:

  • Tamper-proof settings with passcode protection
  • Continuous LCD shows real-time gas concentration
  • 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


Sensor Spec

GasAlert forMeasuring RangeAlarm Setpoints
(Factory defaults are shown. Alarm levels are field-adjustable.)
Relative Humidity non-condensingOperating Temperature
TWA AlarmSTEL AlarmLow AlarmHigh Alarm
Hydrogen Sulfide (H2S)0-100 ppm10 ppm15 ppm10 ppm15 ppm15-90-40 to +50 °C
-40 to +122 °F
Sulfur Dioxide (SO2)0-100 ppm2 ppm5 ppm2 ppm5 ppm15-90
Hydrogen Cyanide (HCN)0-30.0 ppm4.7 ppm10.0 ppm4.7 ppm10.0 ppm15-95
Carbon Monoxide (CO)0-999 ppm35 ppm200 ppm35 ppm200 ppm15-90-30 to +50 °C
-22 to +122 °F
Chlorine (CI2)0-50.0 ppm0.5 ppm1.0 ppm0.5 ppm1.0 ppm10-95-20 to +50 °C
-4 to +122 °F
Nitrogen Dioxide (NO2)0-99.9 ppm2.0 ppm5.0 ppm2.0 ppm5.0 ppm15-90
Ammonia (NH3)0-100 ppm25 ppm35 ppm25 ppm50 ppm15-90
Phosphine (PH3)0-5.0 ppm0.3 ppm1.0 ppm0.3 ppm1.0 ppm15-90
Ethylene Oxide (ETO)0-100 ppm1 ppm5 ppm1 ppm5 ppm15-90
Chlorine Dioxide (ClO2)0-1 ppm0.1 ppm0.3 ppm0.1 ppm0.3 ppm15-95
Ozone (O3)0-1 ppm0.1 ppm0.1 ppm0.1 ppm0.2 ppm15-90
Nitric Oxide (NO)0-250 ppm25 ppm25 ppm25 ppm25 ppm15-90
Oxygen (O2)0-30.0%N/AN/A19.5 %22.5%0-99

General Spec

Auto zeroYes
BacklightLow light (auto); alarm condition (auto); on demand
Full function self-testVerifies integrity of sensor, circuitry and battery; audible/visual alarms
SensorPlug-in, electrochemical cell (temperature compensated)
Indicators And AlarmsClearly advises alarm levels both visually and audibly
Visual alarmFlashing, wide-angled alarm lens with dual red LEDs, plus alarm LCD readout
Audible alarmHigh-output, pulsing 85 dB at 1 ft. / 0.3 m (typical)
Confidence beepEvery 5 seconds (field-selectable)
OtherLow battery; off warning; sensor fail
Optional internal vibratorVibrates in sync with audible and visual alarms
Continuous LCD DisplayAlphanumeric gas readout and status display advises:
Gas ppm or %Continuously displays gas concentration present
TWA and STEL ppm or %Records and displays on demand
Peak ppm or %Records and displays peak (maximum) exposure to gas on demand
SetpointsDisplayed on activation (auto) and on demand in ppm or %
Full function self-testFull function self-test on activation (auto)
General SpecificationsImpact-resistant ABS enclosure
Humidity5% to 95% RH (non-condensing) (15% to 90% non-condensing for PH3 and NH3)
EMI/RFIComplies with EMC Directive 89/336/EEC
Battery type3-volt lithium (camera battery available locally)
Battery life3 years (9,000 hours)
Size1.1 x 2.0 x 3.75 inches / 28 x 50 x 95 mm
Weight2.9 oz. / 83 g




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