BW Gas Alert Quattro Multi Gas Detector

BW Gas Alert Quattro Multi Gas Detector

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BW Gas Alert Quattro Multi Gas Detector

BW Gas Alert Quattro Multi Gas Detector

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BW Gas Alert Quattro Multi Gas Detector

The BW Gas Alert Quattro Multi Gas Detector provides visual auditing, easy compliance and displays real-time gas concentrations readings for up to four gas hazards.

Audible, visual and vibrating alarms alert users to unsafe conditions while downloadable data-logging provides exposure reporting. It can detect gases including hydrogen sulfide (H2S), carbon monoxide (CO), oxygen (O2) and combustible gases (%LEL).

The GasAlert Quattro features IntelliFlash, a green LED confidence flash that verifies normal operation to both the user and supervisors from up to 20 ft. / 6.10 m.

With easy to identify bump test and calibration icons, power options that outlast your shift and one-button operational simplicity, seeing is believing.

Key Features

  • One-button operational simplicity.
  • IntelliFlash verifies operation and compliance (up to 20 ft).
  • Field-proven Sure cell sensors provide a unrivaled performance.
  • Easy to identify icons for onsite auditing and compliance.
  • Interchangeable battery options with extended run times.
  • Rechargeable battery pack or 3 AA batteries.
  • Extensive data-logging and event logging capability.
  • Optional IR interface for tamper-proof operation.
  • Visual, audible and vibrating alarms.
  • Supports English, French, German, Spanish and Portuguese.
  • MicroDock II compatible.
  • Warranty: 2 years.
  • Rating: IP66/IP67.
  • EMI/RFI: Complies with EMC Directive 2004/108/EC.

Compatible Gas Types

Click here to find out what other gas detectors, spares & accessories we have to offer; also check out our handy blog article on The Origin of Portable Gas Detectors.


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 (95 dB)
– Low, High, STEL, TWA, OL (over limit)
TestsAA 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 optionsConfi dence / 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
RatingsEMI/RFI: Complies with EMC Directive 2004/108/EC
Certifications and
Class I, Div. 1, Gr. A, B, C, D
ATEX: X g II 1 G Ga Ex ia IIC T4
IECEx: Ga Ex ia IIC T4
BR-Exia IIC T4
WarrantyFull two-year warranty including all sensors

Sensor Ranges

GasMeasuring RangeResolution
sulfide (H2S)
0-200 ppm0.1 ppm
Carbon monoxide (CO)0-1000 ppm1 ppm
Oxygen (O20-30.0%0.1%
gases (%LEL)
0-100% LEL
0-5.0% v/v
Alarm setpoints for all sensors are user adjustable. Setpoint(s) are automatically displayed
during instrument start up.


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