The QRAE II is a full-featured, compact, one- to four-sensor gas detector for oxygen, combustibles, hydrogen sulfide, carbon monoxide or sulfur dioxide. Key features include easy-to-change battery pack, a water-resistant case and a new state-of-the-art O2 sensor.

Please note this instrument is coming to it's end of life. AES will however, continue to support your QRAE II with service, repair, warranty replacement parts, or an equivalent product replacement until 30 June, 2019.

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IP-65 water- and dust-resistant case
Strong, protective, concussion-proof design
Plug-in sensors: oxygen, combustibles, hydrogen sulfide, or carbon monoxide
Intuitive simple-to-operate two-button user interface
One-button calibration with auto-zero capability

Available to Buy

Specifications

Sensor Specifications (Default)

Gas Monitor	Range	Resolution
Oxygen	0 to 30.0%	0.1%
Combustible	0 to 100% LEL	1% LEL
Carbon Monoxide	0 to 1000 ppm	1 ppm
Hydrogen Sulfide	0 to 100 ppm	0.1 ppm
Sulfur Dioxide	0.1 to 100 ppm	0.1 ppm

*Consult RAE Systems for custom configurations

Detector Specifications

Size	Diffusion: 5" L x 2.8" W x 1.5" H (12.5cm x 7.2cm x 3.8cm) Pump: 5" L x 2.8" W x 2" H (12.5cm x 7.2cm x 5.0cm)
Weight	Diffusion: 9 oz (250 g) Pump: 12 oz (350 g)
Sensors	Catalytic bead for combustibles Oxygen: SPE O2™ (non-consumable Solid Polymer Electrolyte technology) Toxic: electrochemical, H2S, CO or SO2
Battery	Interchangeable Lithium-ion and alkaline battery packs
Operating Period	Diffusion: Up to 14 hours continuous operation with Lithium-ion battery, up to 10 hours with alkaline battery (typical, without alarm) Pump: Up to 10 hours with Lithium-ion battery, up to 8 hours with alkaline battery
Display Graphic	4 lines, with LED automatic back light in dim light or alarm condition
Keypad	Two-key operation
Direct Readout	Instant reading of up to four sensors Oxygen as percentage by volume Combustible gas as percentage of lower explosive limit (LEL), scaleable using correction factors Toxic gases as parts per million High and low values for all gases Battery and shutdown voltage Date, time, elapsed time, temperature
Alarms	95dB buzzer (at 30 cm) and flashing red LED High: 3 beeps, vibration and flashes per second Low: 2 beeps, vibration and flashes per second STEL and TWA: 1 beep, vibration and flash per second Alarms: latching with manual override or automatic reset Additional diagnostic alarm and display message for low battery
EMI/RFI	Highly resistant to EMI/RFI. Compliant with EMC directive 2004/108/EC additional +60 volts/meter
IP Rating	IP-65
Datalogging	Standard 12 days at one-minute intervals
Calibration	Two-point calibration for zero and span (manual, or automatic with the AutoRAE Lite)
Sampling Pump	Optional, internal pump 300 cc/mn
Hazardous Area Approval	US and Canada: CI, D1, Groups A, B, C, D, T4 Europe: ATEX II 2G EEx ia d IIc T4 IECEX: Ex ia d II C T4
Temperature	-4° to 113° F (-20° to 50° C) for T4 temperature code
Humidity	0% to 95% relative humidity (non-condensing)
Attachment	Stainless-steel alligator clip
Warranty	Full 2-year warranty, including all sensors