QRAE 3 – Diffusion – Non-wireless


QRAE 3 Diffusion CSA LEL/H2S/CO/O2 – Li-ion/Non-Wireless (900MHz)

SKU: M020-21111-111 Categories: , ,


The QRAE 3 is a durable and versatile diffusion one-to-four multi-gas monitor for detection of combustibles, oxygen, hydrogen sulfide, carbon monoxide, sulfure dioxide and hydrogen cyanide. Standard features include easy-to-change battery packs, easy access to sensors, internal vibrating alarm, loud 95dB audible alarm, and a water-resistant IP-65 case design. The rechargeable Lithium-ion battery delivers up to 14 hours of continuous operation in this non-wireless diffusion mode.

This is a diffusion gas monitor.

Key Features:

  • Non-wireless
  • Multi gas detection capabilities
  • 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 condition
  • Large graphical display icon-driven user interface through intuitive, simple-to-operate two-button user interface
  • Multi-language support: 17 languages encoded
  • Easy access to pump, sensors, filter and battery compartment

The QRAE 3 provides detection and monitoring of the following:

  • Oxygen (O2)
  • Combustibles (LEL)
  • Hydrogen Sulfide (H2S)
  • Carbon Monoxide (CO)

Monitor Only Configurations includes:

  • Monitor as specified
  • Sensors as specified
  • Sampling option as specified
  • Calibration adapter (diffusion model only
  • Internal filters (mounted – diffusion model only)
  • Travel charger cradle with computer cable
  • Lithium-ion battery pack
  • Universal wall adapter
  • CD ROM with ProRAE Studio II
  • CD ROM with product content
  • Quick Reference Guide

Optional Confined Space Kit 1 includes (020-0040-010):

  • Hard transport case with pre-cut foam
  • Tool Kit
  • Hand pump
  • 10 inch stiff aluminum Sample probe with replaceable filter
  • 6 feet (2 meters) Tygon tubing
  • External filter (pack of 3)

Optional Confined Space Kit 2 includes(020-0040-020):

  • Four-gas mix in a 34L cylinder, part number 600-0050-007
    (50 percent LEL, 18 percent O2, 10 ppm Hydrogen Sulfide, 50 ppm Carbon Monoxide)
  • Regulator and tubing

Industry Safety, Environmental, Oil and gas, Fireground “Toxic Twins” detection, Fire and Emergency response


  • Size:Diffusion: 5.5 in H X 3.2 in. W x 1.5 in W
    Weight: 12.9 oz
  • Running Time: 14 hour
  • Keypad: Two-button

Part Number:

Additional information

Weight 2 lbs
Dimensions 12 × 9 × 4 in


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