RAE Systems QRAE 3 Multi Gas Detector


Product Features

  • Real-time gas detector readings and alarm status enabled by state of the art wireless technology
  • Unmistakable five-way local and remote wireless notification of alarm conditions
  • Intuitive simple-to-operate two-button user interface
  • Strong, protective, concussion-proof design
  • IP-65/67 water- and dust-resistant case
Delivery options

At Cadmus Products we aim to deliver orders efficiently and at highly competitive rates. 

  • We can ship consignments of all shapes and sizes and hazardous content across the UK and worldwide. Most of our orders are sent via DHL, however sometimes we may use other couriers.
  • If you are purchasing a laboratory product online you can find out the price of shipping checkout. If you are obtaining a quote for a product, then we will email you
    with our best shipping prices along with your quote.
  • Please see our delivery page for full information

The RAE Systems 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.

List of Applications:

Clandestine Labs
Confined Space Entry
Emergency Response
Environmental Cleanups/ Remediation
Fire Overhaul
Leak Detection
Plant Shutdown & Turn-Around
Residential Calls
Urban Search & Rescue
Worker Exposure

Product Specification



Diffusion: 5.5 "H x 3.2 "W x 1.5" W (140 mm x 82mm x 42mm)
Pumped: 5.7 "H x 3.2 "W x 1.7" D (145 mm x 82 mm x 42mm)
WEIGHT 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)
SENSORS Up to four field-replaceable sensors:
• LEL: Catalytic bead for combustibles
(built-in Correction Factor library)
• Oxygen: Liquid electrolyte O2
• Toxic: electrochemical for H2S, CO, SO2, HCN

Rechargeable Li-ion

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.
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 (if equipped with pump)
• Wireless on/off and wireless reception quality
• STEL, TWA, peak, and minimum values
• Man Down and policy enforcement indicators
DATALOGGING • 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
DATALOGGING • Continuous datalogging (3 months for 4 sensors at 1-minute intervals,
• User-configurable datalogging intervals (from 1 to 3,600 seconds)
• Data download and instrument set-up and upgrades on PC via Travel Charger
• Wireless data and status transmission via built-in RF modem (optional)

Mesh RAE Systems Dedicated Wireless Network

ISM license free band, 868Mhz or 900Mhz
EchoView Host: LOS > 650 ft (200 m)3
ProRAE Guardian and RAEMesh Reader: LOS > 650 ft (200 m)3
ProRAE Guardian and RAELink3 Mesh: LOS > 330 ft (100 m)
EM IMMUNITY EMI and ESD test: 100MHz to 1GHz 30V/m, no alarm
Contact: ±4kV
Air: ±8kV, no alarm
IP RATING Pumped: IP-65
Diffusion: IP-67
CALIBRATION Two-point calibration for zero and span
(manual, or automatic with AutoRAE 2)
SAMPLING PUMP Built-in pump or diffusion
Can sample through tubing up to 98ft (30m)
HUMIDITY 0% to 95% relative humidity (non-condensing)

US and Canada: classified for use in Class I,
Division 1, Groups A, B, C and D
Europe: IECEx/ATEX (II 1G Ex ia IIC T4)

TEMPERATURE -4° to 122° F (-20° to 50° C) for T4
temperature code
HUMIDITY 0% to 95% relative humidity
ATTACHMENTS Stainless-steel alligator clip Swivel belt clip
(optional) Pouch (optional)
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)
WARRANTY 2-year warranty on device2
3-year warranty on LEL, O2, CO, H2S sensors2
1-year warranty on SO2, HCN sensors2
PGM-2500 & PGM-2560
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