Oxygen, combustibles and toxic gases including hydrogen sulfide, carbon monoxide, sulfur dioxide and hydrogen cyanide, in a strong, protective, concussion-proof case run from two buttons. Built for confined space entry and general safety and compliance work, in pumped or diffusion models, with a wireless option available.
Download datasheet (PDF)
Confined space entry is a core QRAE 3 application. Here is how its features line up with an entry, from the pre-shift check to the record at the end of the day.

A large graphical, icon-driven display and an intuitive, simple-to-operate two-button interface, with easy access to the pump, sensors, filter and battery compartment.
Two-point calibration for zero and span can be done manually, or hands-off with the AutoRAE 2 Automatic Test and Calibration System, an optional accessory.
The pumped version draws its sample in through tubing, and has a built-in pump. It also carries a pump stall alarm.
A stainless-steel alligator clip is the standard attachment. The large graphic display can rotate 180º, automatically or on demand, and an alarm comes through as sound, vibration, flashing red LEDs and an on-screen indication.
On units with the wireless option, live readings and alarm status reach a remote monitor, including the Man Down Alarm with pre-alarm. Additional equipment and/or software licenses may be required to enable remote wireless monitoring and alarm transmission.
Datalogging runs continuously. Download the data and set up or upgrade the instrument on a PC via the Travel Charger, and manage devices with Honeywell SafetySuite.
Diffusion and pumped versions are available for all configurations, and so are wireless and non-wireless options. What changes is how the sample reaches the sensors, plus size, weight, sealing and runtime.

Air reaches the sensors on its own. The lighter of the two, with the higher ingress rating and the longer runtime.

A built-in pump pulls the sample in, through tubing when you need to reach into a space before entering it.
Pumped only: pump stall alarm, and pump status on the display.
Honeywell calls it unmistakable five-way local and remote wireless notification of alarm conditions. In plain terms: the monitor tells the wearer in several ways at once, and on wireless units it can tell someone else too.
Multi-tone 95dB buzzer, at 11.8" / 30 cm, typical.
A vibration alarm, felt as well as heard.
Flashing red LEDs.
On-screen indication of alarm conditions, with a diagnostic alarm and display message for low battery.
Man Down Alarm with pre-alarm and real-time remote wireless notification, so on wireless units the people topside know as well. Additional equipment and/or software licenses may be required to enable remote wireless monitoring and alarm transmission.
Monochrome graphic display (128 x 80) · 1.57" W x 1.06" H (40 x 27 mm) with backlighting · two-button operation
Wireless is an option, not a given: wireless and non-wireless options are available for all configurations. Where it is fitted, a built-in RF modem sends data and status over a dedicated RAE Systems mesh network, so readings and alarm status can be watched 24/7 from a distance.
Mesh RAE Systems Dedicated Wireless Network · ISM license free band, 868Mhz or 900Mhz
Typical wireless range, line of sight, receiving >80%. Additional equipment and/or software licenses may be required to enable remote wireless monitoring and alarm transmission.
Real-time instrument readings and alarm status, 24/7. Honeywell's point: better incident visibility, and it can improve response time.
Man Down Alarm with real-time remote wireless notification.
Wireless costs runtime: 14 hours continuous non-wireless vs 10 hours with wireless on the diffusion version; 11 hours vs 8 hours pumped.
FCC Part15, ANATEL.
Up to four field-replaceable sensors: a catalytic bead for combustibles, a liquid electrolyte oxygen sensor and electrochemical toxic sensors. Default range and resolution for each gas are shown below.
Sensor warranties are against factory defects. Tell us which gases you need to monitor and we will work out the configuration with you.
Confined space entry, and general safety and compliance work across a range of settings.



Download the datasheet under Service & resources for the full document.
| Physical | |
|---|---|
| Size | Diffusion: 140 mm x 82mm x 42mm Pumped: 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) |
| IP rating | Pumped: IP-65 Diffusion: IP-67 |
| Case | IP-65/67 water- and dust-resistant case; strong, protective, concussion-proof design |
| Attachments |
|
| Sampling & calibration | |
| Sampling pump | Built-in pump or diffusion Can sample through tubing up to 98ft (30m) |
| Calibration | Two-point calibration for zero and span (manual, or automatic with AutoRAE 2) |
| Environment | |
| Temperature | -4° to 122° F (-20° to 50° C) for T4 temperature code |
| Humidity | 0% to 95% relative humidity (non-condensing) |
| EM immunity | EMI and ESD test: 100MHz to 1GHz 30V/m, no alarm Contact: ±4kV Air: ±8kV, no alarm |
| Battery | |
|---|---|
| Battery | Rechargeable Li-ion |
| Running time |
|
| Data | |
| Datalogging | Continuous datalogging (3 months for 4 sensors at 1-minute intervals, 24/7) User-configurable datalogging intervals (from 1 to 3,600 seconds) |
| Communication & data download | Data download and instrument set-up and upgrades on PC via Travel Charger Wireless data and status transmission via built-in RF modem (optional) |
| Device management | Device Management with Honeywell SafetySuite |
| Display & controls | |
|---|---|
| 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 |
|
| 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) |
| Alarms | |
| Alarms |
|
| Availability | Wireless and non-wireless options available for all configurations. Additional equipment and/or software licenses may be required to enable remote wireless monitoring and alarm transmission. |
|---|---|
| Wireless network | Mesh RAE Systems Dedicated Wireless Network |
| Wireless frequency | ISM license free band, 868Mhz or 900Mhz |
| Wireless approvals | FCC Part15, ANATEL |
| Wireless range (typical) |
|
| Sensors | Up to four field-replaceable sensors:
|
|---|
| Default sensor specifications | Range | Resolution |
|---|---|---|
| Oxygen (O2) | 0 to 30.0% | 0.1% |
| Combustible | 0 to 100% LEL | 1% LEL |
| Carbon monoxide (CO) | 0 to 500 ppm | 1 ppm |
| Hydrogen sulfide (H2S) | 0 to 100 ppm | 0.1 ppm |
| Sulfur dioxide (SO2) | 0 to 20 ppm | 0.1 ppm |
| Hydrogen cyanide (HCN) | 0 to 50 ppm | 0.2 ppm |
Tell us which gases you need and we will confirm the configuration.
| Hazardous area approval | |
|---|---|
| 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) |
| Warranty | |
| Warranty |
|
Honeywell's warranty terms for the QRAE 3, the datasheet, and FarrWest warranty service, calibration and repair for your Honeywell instruments.
Against factory defects
FarrWest is a Honeywell Authorized Service Provider for BW and RAE Systems gas detection. Call to confirm coverage for your model.
Warranty service FarrWest serviceInstruments covered by a Honeywell Service Made Simple Enhanced agreement are repaired, calibrated and returned by the FarrWest Repair Depot in San Antonio, Texas.
Repair Depot HoneywellFeatures, specifications, default sensor ranges and warranty.
PDFFarrWest is a pre-approved vendor on BuyBoard and Purchasing Cooperative of America (PCA). Government agencies can buy on competitively-bid cooperative contracts, with no lengthy RFP.
How co-op buying worksServiceFarrWest is a Honeywell Authorized Service Provider for BW and RAE Systems gas detection, with repair and calibration in our own Repair Depot in San Antonio, Texas.
Warranty serviceSince 2004Serving Hazmat, Fire, Police, EMS, and Specialty Vehicle operations nationwide since 2004, with expert support, training, and service after the sale.
About FarrWestHoneywell MultiRAE is a pumped six-gas monitor with 25 sensor options, including PID for VOCs and NDIR for combustibles and CO2. FarrWest…
View productRelatedConfigure the Honeywell MultiRAE Lite for 1 to 6 gases from over 25 sensor options, pumped or diffusion, wireless optional. Quote and…
View productRelatedHoneywell MultiRAE Pro detects gamma radiation plus VOC, toxic and combustible gases in one handheld, ppb PID option. Honeywell-authorized service: FarrWest.
View productTell us the gases you need, pumped or diffusion, and whether you want the wireless option. We will come back with the right configuration for your team.