Sales & Support 1300 436 267


Full featured, 4-Gas Wireless Monitor

RAE Systems new QRAE 3 is a versatile, rugged, one- to four-sensor pumped or diffusion gas monitor that provides continuous exposure monitoring of oxygen (O2), combustibles, and toxic gases, including hydrogen sulfide (H2S), carbon monoxide (CO), sulfur dioxide (SO2) and hydrogen cyanide (HCN) for workers and responders in hazardous environments.

The QRAE 3's wireless communications capability enables access to real-time instrument readings and alarm status (including Man Down alarm) from any location for better visibility and faster response. Real-time hazard readings can also be communicated to the ProRAE Guardian Safety System and the EchoView Host Mini-Controller Closed-Loop Wireless System for safety-enhancing wireless monitoring.

The wireless QRAE 3 monitor provides safety officers and commanders real-time remote access to the readings and alarm status of workers and responders. Safety officers who are outside the immediate incident area can have the same real-time awareness as those in the “hot zone." This can help facilitate faster, data-driven decision making to alert responders, save lives and protect assets.

Contact Us for stock levels and order fulfillment

Sales & Support: 1300 436 267
Email: [email protected]

Sensor Range

  • H₂S, 
  • CO, 
  • O₂, 
  • LEL, 
  • SO₂, 
  • PH₃, 
  • NH₃, 
  • NO₂, 
  • HCN, 
  • CL₂.
  • Features
  • Specifications
  • Sensor Specs
  • Accessories
  • PDF Download


  • Available in Diffusion or Pumped version
  • IP-65/67 water- and dust-resistant case
  • Strong, protective, concussion-proof design
  • Real-time gas concentration readings and alarm status enabled by state-of-the-art wireless technology
  • Unmistakable five-way local and remote wireless notification of alarm conditions
  • Large graphical display icon-driven user interface through intuitive, simple-to-operate two-button user interface.
  • Multi-language support: 18 languages encoded
  • Easy access to pump, sensors, filter and battery compartment


Technical Specifications





Diffusion: 12.9 oz (365 g with Li-ion battery and clip)

Pumped: 14.5 oz (410 g with Li-ion battery, clip, and external filter)


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

Run 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); lowertemperatures and alarm conditions will affect runtime.

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


Two-button operation

Direct Readout
  • Real-time reading of gas concentrations
  • Battery status
  • Pump status (if equipped with pump)
  • Wireless on/off and wireless reception quality
  • STEL, TWA, peak, and minimum values
  • Man Down and policy enforcement indicators
  • Multi-tone 95dB buzzer (at 11.8"/ 30 cm, typical), vibration alarm, andflashing 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
Data Logging
  • Continuous datalogging (3 months for 4 sensors at 1-minuteintervals, 24/7)
  • User-configurable datalogging intervals (from 1 to 3,600 seconds)
Communication & Data Download
  • Data download and instrument set-up and upgrades on PC viaTravel Charger
  • Wireless data and status transmission via built-in RF modem (optional)
Wireless Network

Mesh RAE Systems Dedicated Wireless Network

Wireless Frequency & Approvals

ISM license free band, 868Mhz or 900MhzFCC Part15, CE R&TTE, ANATEL

Wireless Range (Typical)

EchoView Host: LOS > 650 ft (200 m)3

ProRAE Guardian & RAEMesh Reader: LOS > 650 ft (200 m)3

ProRAE Guardian & RAELink3 Mesh: LOS > 330 ft (100 m)3

EM Immunity

EMI and ESD test: 100MHz to 1GHz 30V/m, no alarmContact: ±4kV

Air: ±8kV, no alarm

IP Rating

Pumped: IP-65

Diffusion: IP-67


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

Sampling Pump

Built-in pump or diffusion

Can sample through tubing up to 98ft (30m)

Hazardous Area Approval

For all certifications, please review the manual or consult Encore Monitoring.


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


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


Stainless-steel alligator clip; Swivel belt clip (optional);Pouch (optional)


Arabic, Chinese, Czech, Dutch, English, French, German,Indonesian, Italian, Japanese, Korean, Norwegian, Polish,Portuguese, Russian, Spanish, Swedish and Turkish(language must be changed through ProRAE Studio II)


2-year warranty on device

3-year warranty on LEL, O2, CO, H2S sensors

1-year warranty on other sensors

Sensor Specs

Sensor Specifications

Gas Range Resolution
O2 0-30%vol. 0.1% vol.
LEL 0-100% LEL 1% LEL
CO 0-500 ppm 1 ppm
H2S 0-100 ppm 0.1 ppm
SO2 0-20 ppm 0.1 ppm
HCN 0-50 ppm 0.2 ppm
NH3 100 ppm 1 ppm
PH3 20 ppm 0.01 ppm
Cl2 0-50 ppm 0.05 ppm
NO2 0-50 ppm 0.1 ppm


No Image

External Battery Charger

PDF Download



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