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GasAlertMicro 5, IR, PID series Multi-Gas detector



  • There are 3 Models in this series: GasAlertMicro 5, GasAlertMicro 5IR, GasAlertMicro 5PID
  • Option for install below sensors: H2S, CO, TwinTox (H2S), TwinTox (CO), O2, SO2, PH3, NH3, NO2, HCN, Cl2, ClO2, O3, PID (VOCs), IR (CO2), Combustible gas

The portable GasAlertMicro5 gas detector has the ability to simultaneously monitor and display up to 5 potential atmospheric hazards including combustible gases, oxygen, and a range of toxic gases. Compact and lightweight, the GasAlertMicro5 adds multi-gas detection to the water-resistant line of detectors by BW Technologies. Audible, visual and vibrator alarms activate in the event of a low, high, TWA or STEL alarm condition. Also available is an optional motorized pump.

Besides the standard features that come with your favorite BW portable instruments such as simple automatic calibration proceedure, confidence beep, full function self test, and passcode protection, GasAlertMicro5 includes an extended selection of user-settable field options. Among them are: stealth mode, backlight options, combustible/PID correction factor options, selectable ppm resolution, STEL / TWA measurement choice, user-settable calibration gas concentrations and multi-language support.

GasAlertMicro 5 Features

  • Rugged, highly water-resistant design
  • Continuous LCD shows simultaneous gas concentrations for 5 gases
  • Compact (5.7 x 2.9 x 1.5 in. / 14.5 x 7.4 x 3.8 cm) and lightweight (13.1 oz. / 370 g)
  • Integral concussion-proof enclosure for the most rugged environments
  • Integral motorized pump option for remote sampling (optional)
  • Two power options: three AA alkaline batteries or a rechargeable battery pack
  • Provides 95 dB alarm tone and two bright wide-angled alarm bars
  • Equipped with internal vibrating alarm for high noise areas
  • Multi-language support in English, French, German, Spanish and Portuguese
  • Three backlight options: standard—activates in low light (auto), in alarm (auto) and reactivates on-demand; alarm only—activates in alarm conditions and reactivates on-demand; stealth mode
  • Four alarm levels: instantaneous Low and High Alarm for all gases; TWA (time weighted average) and STEL (short term exposure limit) for toxic gases
  • Simple automatic calibration procedure; compatible with BW MicroDock II system
  • User selectable field options include: confidence beep, pass code protection, latching alarm, calibration due date and “SAFE” display function, stealth mode, selectable ppm resolution for some gases (e.g. SO2 0.1 ppm)
  • Full function self-test of: sensor, battery and circuit integrity; and audible/visual alarms
  • Records TWA, STEL and maximum exposures to gas and displays readings on command


General Specifications:

Size 5.7 x 2.9 x 1.5 in. / 14.5 x 7.4 x 3.8 cm
Weight 13.1 oz. / 370 g
Temperature -4 to +122°F / -20 to +50°C
-14 to +104°F / -10 to +40°C (PID)
Alarms – Visual, vibrating, audible (95dB)
– Low, High, STEL, TWA, OL (over limit)
Tests Sensor integrity, circuitry, battery and audible/visual alarms on activation, battery (continuous)
Pump Optional
User options Confidence beep, Set STEL interval, Set TWA method, Sensor on/off, Latching alarms, Safe display mode, Stealth mode, Adjust Clock, Set datalogger rate, Passcode protection, Correction factor library (LEL, PID), Fast pump, Combustible gas measurement (% LEL or % by volume methane), O2 auto calibration on start up, Automatic backlight, Sleep mode, User-settable calibration gas level, Calibration due lockout, Daily bump test, Language choices (5), High resolution

Sensor Specifications:

Gas Measuring Range (ppm) Default Resolution (ppm) High Resolution (ppm)
H2S 0-500 1.0 0.1
CO 0-999 1.0 N/A
TwinTox (H2S) 0-500 1.0 0.1
TwinTox (CO) 0-500 1.0 N/A
O2 0-30.0% 0.1% N/A
SO2 0-150 1.0 0.1
PH3 0-5.0 1.0 0.1
NH3 0-100 1.0 0.1
NO2 0-99.9 1.0 0.1
HCN 0-30.0 1.0 0.1
Cl2 0-50.0 1.0 0.1
ClO2 0-1.0 0.1 0.01
O3 0-1.0 0.1 0.01
PID (VOCs) 0-1000 1 N/A
IR (CO2) 0-50,000
0-5.0% v/v
Combustible gases 0-100% LEL
0-5.0% v/v




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