RAE Systems QRAE 3 (2-Gas, 4-Gas) Meter Rental

  • Measures combustible gases (0-100% LEL), oxygen (0-30%), carbon monoxide (0-500ppm), hydrogen sulfide (0-100ppm). *2-Gas Configuration includes oxygen and combustible sensors only.
  • Rechargeable Li-ion battery ~11 hour runtime typical
  • Datalogging capability (3 months for 4 sensors at 1-minute intervals, 24/7)
  • Built-in sampling pump 300 cc/min, can sample through tubing up to 98 ft (30 m) long.
Rental Rates
Daily Weekly Monthly
$90.00 $203.00 $551.00

The QRAE 3 is RAE Systems most advanced compact monitor for one to four gases. The portable QRAE 3 can detect and monitor oxygen (O2), combustibles (LEL), and toxic gases such as carbon monoxide (CO) and hydrogen sulfide (H2S)  -- This ability to work in real-time allows the QRAE 3 to help first responders and safety officers to make faster, more informed decisions to protect lives and property.  The QRAE 3's design allows for simple maintenance with easily accessible sensors and sampling pump.  User configurable audible and visible alarms give you confidence that your workers will be alerted of dangerous conditions before they become an issue.

Sensor Range Resolution
Oxygen 0 to 30% 0.1%
Combustible Gases 0 to 100% LEL 1% LEL
Carbon Monoxide 0 to 500 ppm 1 ppm
Hydrogen Sulfide 0 to 100 ppm 0.1 ppm
Size 5.7" H x 3.2" W x 1.7" D (145 mm x 82 mm x 42 mm)
Weight 14.5 oz (410 g with Li-ion battery, clip, and external filter)
Battery Rechargeable Li-ion
Operating Period 11 hours continuous
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
Keypad Two-button operation
Direct Readout
  • Real-time reading of gas concentrations
  • Battery status
  • Pump status
  • STEL, TWA, peak, and minimum values
  • Man Down and policy enforcement indicators
  • 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
  • Man Down Alarm with pre-alarm and real-time remote wireless notification
  • Continuous datalogging (3 months for 4 sensors at 1-minute intervals, 24/7)
  • User-configurable datalogging intervals (from 1 to 3,600 seconds)
Data Download Data download and instrument set-up and upgrades on PC via Travel Charger
EM Immunity EMI and ESD test: 100 MHz to 1 GHz 30 V/m, no alarm Contact ± 4 kV Air ± 8 kV, no alarm 
IP Rating IP-65
Calibration Two-point calibration for zero and span
Sampling Pump 300 cc/min, Can sample through tubing up to 98 ft (30 m)
Hazardous Area US and Canada: classified for use in Class I, Division 1, Groups A, B, C, and D<br>Europe: IECEx/ATEX (II 1G Ex ia IIC T4)(pending)
Temperature -4° to 122° F (-20° to 50° C) for T4 temperature code
Humidity 0% to 95% relative humidity (non-condensing)
Attachments Stainless-steel alligator clip
Languages Arabic, Chinese, Czech, Dutch, English, French, German, Indonesian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Spanish, and Swedish (language must be changed through ProRAE Studio II)


  • QRAE 3 Gas Meter
  • Sensors:
    • 4-Gas Configuration: carbon monoxide, hydrogen sulfide, combustible gases (LEL), oxygen
    • 2-Gas Configuration: combustible gases (LEL), oxygen
  • Data Download Cable
  • ProRAE Studio II Software
  • Instruction Manual
  • Battery Charger
  • Tubing
  • Calibration Record
  • Spare Filter