RAE Systems QRAE II Gas Detector

Rugged, full-featured one- to four-sensor gas detector with a powerful built-in sampling pump.

Retired products cannot be ordered

For replacement see the RAE Systems QRAE 3 Gas Detector

Due to restrictions on hazardous shipping, a $54 hazardous materials fee will be added to your shipping costs & shipping may take longer.

Effective August 4th, 2025 RAE Systems has added a 13% surcharge for this product. The surcharge will appear as a separate line item on each sales order.

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Manufactured

By RAE Systems

Includes

FREE Lifetime Tech Support

Product Manual Product Specs

Features

Plug-in sensors: oxygen, combustibles, hydrogen sulfide, or carbon monoxide
Pump or diffusion models available
Patented O2 sensor has a lead-free design that complies with RoHS directive
Best EMI/RFI immunity technology, minimizing electromagnetic and radio interference
Easy access to pump, sensors, filter and battery compartment
IP65 water- and dust-resistant case
Strong, protective, concussion-proof design
Intuitive simple-to-operate two-button user interface
Multi-language support
One-button calibration with auto-zero capability
Cradle connects to PC and charges monitor and battery
Large graphic display can be flipped 180º with a push of a button for convenient viewing from belt or hand

What's in the Box

Alkaline adapter (back-up operation)
Internal filters (diffusion model only)
Rechargeable Li-ion units include: Charging/download cradle with computer cable, Lithium-ion battery pack , Universal wall adapter (Alkaline versions do not include a charging/download cradle)
CD ROM with user manual and ProRAE Studio
Quick start guide
External filter (pumped model only)
Calibration adapter (diffusion model only)

The RAE Systems QRAE II is a full-featured, rugged yet compact, one- to four-sensor gas detector with a powerful built-in sampling pump. It is designed to provide continuous exposure monitoring of oxygen, hydrogen sulfide, carbon monoxide, and combustible gases for workers in hazardous environments.

Standard features include easy-to-change battery packs, easy access to sensors, internal vibrating alarm, loud 95dB audible alarm, and a water-resistant IP65 case design. The rechargeable Lithium-ion battery delivers up to 14 hours of continuous operation in diffusion mode (a spare alkaline battery adapter is included for 10 hour back-up operation). RAE Systems' patented, CO2 tolerant SPOE O2 sensor delivers a longer lifespan boasting an RoHS compliant lead-free and leak-free design. The QRAE II sports the capability to record data that can be downloaded to a PC.

The AutoRAE Lite automatic calibration station for QRAE II enables fast and easy bump testing and calibration of the monitor, streamlines the data download process, and saves calibration gas to deliver the lowest cost of ownership on the market.

The RAE Systems QRAE II is available as a meter only (including standard accessories) or as part of a confined space kit. The confined space kit includes the meter (with standard accessories) as well as:

Four-gas mix in a 34L cylinder: 50% LEL, 18% O2, 10 ppm Hydrogen Sulfide, 50 ppm Carbon Monoxide (p/n: 600-0050-007)
Regulator and tubing
Calibration gas cylinder