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T: 514-354-2511
T: 1 800 463-4363
F: 514-354-6948
Gas Detector  Environment

Gas Detector

Product Code:GasAlert Micro 5 series

Need more Info? (514) 354-2511 - 1-800-463-4363

Attention: Please contact us for delivery delay.

Simultaneously monitor and display up to five atmospheric hazards with the GasAlertMicro 5 Series. 

Adaptable to a variety of applications, the GasAlertMicro 5 Series has an extensive selection of user-settable field options and is available as either a standard toxic gas model, a PID model for the detection VOCs, or an IR model for CO2 detection. Use the passcode function to prevent unauthorized modifications of the instrument’s settings. Compatible with BW’s MicroDock II automatic test and calibration system, the GasAlertMicro 5 Series is unparalleled in its versatility, performance and overall value


Generation 2 pump with visible integrated filter



  • Continuous LCD shows real-time gas concentrations
  • Water-resistant
  • 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
  • Integral motorized pump option for remote sampling
  • Equipped with internal vibrating alarm for high noise areas
  • Two power options: AA alkaline or rechargeable hot-swappable battery packs 
  • Multi-language support in English, French, German, Spanish and Portuguese



Size 4,5 x 7,4 x 3,8 cm (5,7 x 2,9 x 1,5")
Weight 13.1 oz. / 370 g

-4 to +122°F / -20 to +50°C 14 to +104°F 

-10 to +40°C (PID)


- Visual, vibrating, audible (95 dB)

- Low, High, STEL, TWA, OL (over limit)

Tests Sensor integrity, circuitry, battery and audible/visual alarms on activation, battery (continuous)
Pump Optional; Sample from up to 66 ft. / 20 m
User Options
  • Confi dence 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 (fi ve)
  • High resolution
Raitings EMI/RFI: Complies with EMC Directive 89/336/EEC IP 65/66
Certifications and approvals






Industrial Applications

GasAlertMicro 5
Industry or Application Sources of Additional Hazards
Confi ned Space Entry Various sources - industrial chemicals 
Wastewater Plants Cl2, NH3, ClO2 from treatment
Steel / Iron Production NO2
Pulp and Paper Cl2 issu du blanchiment
Food and Beverage NH3 from refrigerants, ice production
PH3  from fumigation
Construction Confi ned space entry, trenching, and NO2 from diesel exhaust
Gases Detected H2S, CO, O2, SO2, PH3, NH3, NO2, HCN, Cl2, ClO2, O3 and combustibles (LEL)
Typical battery life  
AA Alkaline 20 hours
Rechargeable 20 hours
GasAlertMicro 5 PID
Industry or Application Sources of VOC Hazards
Confi ned Space Entry Respiration and aerobic bacterial decomposition
Hazmat / Homeland Security Detect fl ammables not detected by LEL sensor (diesel, gasoline vapor, turpentine, etc
Industrial Hygiene and Confined Space

Wide number of potential hazards (benzene, diesel, ethanol, toluene, etc.) dependant on industry

Airlines (wing-tank entry) Jet fuel not detectable by LEL sensor, PID required
Landfills Decomposing organic matter, emission of chemical compounds
Oil and Gas By-products of refi ning processes
Chemical Plants Number of potential hazards dependant on product and process of manufacturing
Gases Detected VOCs (PID), H2S, CO, O2, SO2, PH3, NH3, NO2, HCN, Cl2, ClO2, O3 and combustibles (LEL)
Typical battery life  
AA Alkaline 15 hours
Rechargeable 15 hours
GasAlertMicro 5 IR
Industry or Application Sources of CO2 Hazards
Confined Space Entry Respiration and aerobic bacterial decomposition
Wineries and Breweries By-product of yeast fermentation
Agriculture Greenhouses, mushroom farms use  CO2 to enhance growth; also used to speed ripening of fruits and vegetables, aerobic bacteria in manure pits
Marine Fuel Transport / Shipping and Shipyards Used for fi re suppression and inerting cargo holds
Oil Well Fracturing Injected into mature wells for further oil extraction
Wastewater Treatment Aerobic bacteria
Food Industry / Cold Storage CO2 solide (dry ice) used as a refrigerant and for carbonation; 
Industrial and Chemical Manufacturing Solid CO2 used in various processes CO2 used in packaging to extend storage shelf life
Landfills Biodegradation (aerobic decomposition) of waste
Gases Detected CO2 (IR), H2S, CO, O2, SO2, NH3, O3 and combustibles (LEL)
Typical battery life  
AA Alkaline 15 hours
Rechargeable 15 hours



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 N/A


0-50 000
0-5,0 % v/v
0,01 %
Combustibles 0-100 % LIE  1 %  N/A
Gases  0-5,0 % v/v 0,1 %

Alarm set points for all sensors are user adjustable. Set point(s) are automatically displayed during instrument start up.



Options et accessories

Integral pump and battery charger  
Confined space kit
 Belt holster
Collapsible sampling probe  

Convertisseur d'unités