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GasAlertQuattro high level 4 gas detector, LEL/O2/CO/H2S



Rugged and reliable, the GasAlertQuattro four-gas detector combines a comprehensive range of features with simple one-button operation.

Features & Benefits

  • Compact and lightweight design makes it comfortable to wear
  • Simple one-button operation for ease of use
  • Compatible with MicroDock II

GasAlertQuattro Specs

  • Size: 5.1 x 3.2 x 1.9 in. / 13.0 x 8.1 x 4.7 cm
  • Temperature: -4 to +122°F / -20 to +50°C
  • Enhanced resistance to common industrial cross sensitive gases such as methanol and ethanol (CO and H2S sensors)

Product Overview

With flexible power options, the GasAlertQuattro is always ready. The graphic LCD displays easy to identify icons that indicate operational information, such as bump test and calibration status for simplified onsite auditing. IntelliFlash provides continuous visual confirmation of detector operation and compliance. Suited to a wide range of industrial applications including confined space entry.

Additional GasAlertQuattro features:

  • Interchangeable rechargeable battery pack or alkaline pack with 3 AA batteries
  • Comprehensive datalogging and event logging capacity
  • IntelliFlash verifies operation and compliance to user and supervisors from up to 20 ft. / 6.1 m
  • Field-proven SureCell sensors offer an unprecedented performance in even the harshest environments.


General Spec:

Size5.1 x 3.2 x 1.9 in. / 13.0 x 8.1 x 4.7 cm
Weight– 11.15 oz. / 316 g (with rechargeable battery pack)
– 11.92 oz. / 338 g (with alkaline battery pack)
Temperature-4 to +122°F / -20 to +50°C
Humidity10% – 100% RH (non-condensing)
Alarms– Visual (six, red LEDs), vibrating, audible (95dB)
– Low, High, STEL, TWA, OL (over limit)
TestsSensor integrity, circuitry, battery and audible/visual alarms on activation, battery (continuous), sensor (continuous)
PumpCompatible with the Sampler motorized sampling pump
Battery lifeAA alkaline: 14 hrs (+68 to 122°F / +20 to 50°C)
Rechargeable: 20 hrs (+68 to 122°F / +20 to 50°C), 18 hrs (-4 to +32°F / -20 to 0°C)
User optionsConfidence / Confidence 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
WarrantyFull two year warranty including all sensors

Sensor Spec:

GasMeasuring RangeResolution
Hydrogen sulfide (H2S)0-200 ppm0.1 ppm
Carbon monoxide (CO)0-1000 ppm1 ppm
Oxygen (O2)0-30.0%0.1%
Combustible gases (%LEL)0-100% LEL
0-5.0% v/v




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