Rugged and reliable, the GasAlertQuattro is four-gas detector for H2S (0-200 ppm), CO (0-1000 ppm), O2 (0-30.0%) AND LEL (0-100% LEL, 0-5.0% v/v)
Comprehensive range of features with simple one-button operation
Graphic LCD displays easy to identify icons that indicate operational information, such as bump test and calibration status for simplified onsite auditing


  • Continuous LCD shows real-time gas concentrations

  • Compact and lightweight design makes it comfortable to wear

  • Simple automatic calibration procedure; compatible with BW MicroDock II automatic test and calibration station

  • Full function self-test of sensor(s), battery status, circuit integrity and audible/visual alarms on start up and continuous testing on sensor(s)

  • Bright wide-angled visual alarm bars

  • Built-in concussion-proof boot

  • Powered by an interchangeable rechargeable battery pack or alkaline pack with 3 AA batteries

  • One-button operation and straightforward user interface minimizes training

  • Comprehensive datalogging and event logging capacity

  • IntelliFlash verifies operation and compliance to both the user and supervisors from up to 20 ft. / 6.1 m

  • Enhanced resistance to common industrial cross sensitive gases such as methanol and ethanol (CO and H2S sensors)

  • Multi-language support in English, French, German, Spanish and Portuguese

  • Field-proven Surecell sensors offer an unprecedented performance in even the harshest environments.


User Options:

  • 0-100% LEL

  • Confidence / compliance beep

  • Confidence flash

  • Set STEL interval

  • Sensor on/off

  • Latching alarms

  • Safe display mode

  • Force calibration

  • Auto-zero on start up

  • Flip display

  • Combustible gas measurement (% LEL or % by volume methane)

  • User-definable calibration gas concentration

  • Force bump

  • Language choices (five)

  • Custom start up message

  • Datalog interval

Ratings: EMI/RFI: Complies with EMC Directive 2004/108/EC IP66/IP67
Certificates and Approvals:

Temperature: -4 to +122°F / -20 to +50°C
Humidity: 10% - 100% RH (non-condensing)
- Visual (six, red LEDs), vibrating, audible (95dB)
- Low, High, STEL, TWA, OL (over limit)
Tests: Sensor integrity, circuitry, battery and audible/visual alarms on activation, battery (continuous), sensor (continuous)
Pump: Compatible with the Sampler motorized sampling pump (not included)

Download Product Data Sheet

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