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RAE Systems QRAE 3 LEL / H2S / CO / O2 Multigas Monitor- M020-11111-111

Brand:RAE Systems

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M020-11111-111 QRAE 3 LEL / H2S / CO / O2 Multigas Monitor


Brand: RAE Systems

Part Number: M020-11111-111


The QRAE 3 is a full featured compact 4-gas monitor that provides detection and monitoring of Oxygen (O2), Combustibles and toxic gases that include Carbon Monoxide (CO), Hydrogen Sulfide (H2S), Sulfure Dioxide (SO2) and Hydrogen Cyanide (HCN) and others.



  • Industrial safety
  • Oil and gas
  • Fireground "Toxic Twins" detection
  • Environmental
  • Fire and Emergency response
  • Chemical
  • Pharmaceutical
  • Telecommunications



Up to four replaceable sensors:

- LEL: Catalytic bead for combustibles (built-in Correction Factor library)

- Oxygen: Liquid electrolyte O2

- Electrochemical sensor for Toxics


Rechargeable Li-ion

Display Graphic

Monochrome graphic display (128 x 80)

Display size: 1.57" W x 1.06" H (40 x 27 mm) with backlighting

Automatic or on-demand screen rotation

Running time

- 14 hours continuous non-wireless, diffusion

- 11 hours continuous non- wireless, pumped

- 10 hours continuous with wireless, diffusion

- 8 hours continuous with wireless, pumped

Note: All battery specifications at 68° F (20° C); lower temperatures and alarm conditions will affect runtime.

IP Rating

Pumped: IP-65

Diffusion: IP-67


Two-point calibration for zero and span (manual, or automatic with AutoRAE 2)


- Multi-tone 95dB buzzer (at 11.8"/ 30 cm, typical), vibration alarm, and flashing red LEDs and on-screen indication of alarm conditions

- Alarms: latching, non latching or manual override

- Additional diagnostic alarm and display message for low battery

- Pump stall alarm (pumped version only)

- Man Down Alarm with pre-alarm and real-time remote wireless notification


-4° to 122° F (-20° to 50° C) for T4 temperature code


0% to 95% relative humidity (non-condensing)


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