MicroRAE
Wireless Portable 4-Gas Monitor
The MicroRAE by Honeywell is a wireless 4-gas diffusion monitor that simultaneously measures hydrogen sulphide, carbon monoxide, oxygen and combustibles (LEL). With built-in wireless connectivity across Mesh, WiFi and NB-IoT options, the MicroRAE delivers real-time gas concentration readings, GPS location, alarm status and Man Down notification to remote monitoring systems continuously throughout the shift. Compact, lightweight and IP-67 rated, it is designed for connected worker applications across oil and gas, utilities, lone worker programs and hazardous industrial environments.
KEY BENEFITS
- Wireless 4-gas monitoring with real-time readings, location and alarm status transmitted to remote systems
- Available with Mesh, WiFi and NB-IoT wireless connectivity options
- GPS module for real-time worker location tracking
- Man Down alarm with real-time remote wireless notification
- Bluetooth Low Energy connection to smartphone for data upload and device configuration
+ more in the Description tab below
Wireless 4-Gas Monitoring for the Connected Worksite
Most 4-gas monitors tell the worker what gases are present. The MicroRAE tells the worker and the safety manager simultaneously – in real time, from wherever the worker is on site. Built-in wireless connectivity transmits live gas concentration readings, GPS location, alarm status and Man Down alerts to remote monitoring software continuously, enabling faster, more informed decisions when safety threats arise.
The MicroRAE is available with three wireless technology options to suit different site infrastructure requirements. Mesh radio operates across a dedicated RAE wireless network with a range of up to 200 m. WiFi connects through existing site WiFi infrastructure. NB-IoT operates over a publicly available cellular network, enabling remote monitoring across sites with no existing wireless infrastructure at all — particularly valuable for lone worker programs, remote operations and widely dispersed sites.
Man Down and Panic Alarm
The MicroRAE includes a Man Down alarm that detects if the instrument has been in a non-upright position or stationary for a set period, triggering a pre-alarm followed by a real-time remote wireless notification if not cancelled. A panic button provides immediate manual emergency notification. Together these features make the MicroRAE well suited to lone worker applications where rapid emergency response is critical.
Connected to the Honeywell Safety Ecosystem
The MicroRAE integrates with Honeywell’s ConneXt platform, supporting ConneXt Plus, ConneXt Pro and ConneXt Loneworker configurations for real-time monitoring, alarm management and worker status visibility. Bluetooth Low Energy connectivity also allows pairing with a smartphone for data upload and device configuration without needing a PC or docking station. Full compatibility with AutoRAE 2 enables fully automated bump testing and calibration, reducing the manual effort required to maintain fleet compliance.
Compact, Rugged and Built for Industrial Use
The MicroRAE weighs just 206 g including battery and clip, making it comfortable to wear throughout a full shift. Its concussion-proof design and IP-67 ingress protection ensure reliable performance in demanding environments. A six-month datalogging capacity at one-minute intervals ensures a comprehensive compliance record is always available for download.
Benefits
- Wireless 4-gas monitoring with real-time readings, location and alarm status transmitted to remote systems
- Available with Mesh, WiFi and NB-IoT wireless connectivity options
- GPS module for real-time worker location tracking
- Man Down alarm with real-time remote wireless notification
- Bluetooth Low Energy connection to smartphone for data upload and device configuration
- Honeywell ConneXt compatible: works with ConneXt Plus, ConneXt Pro, ConneXt Loneworker and Safety Communicator
- Five-way local and remote notification of alarm conditions
- Filtered LEL sensor options to inhibit sensor poisoning
- 15 hours continuous runtime non-wireless, 12 hours wireless
- Fully automated bump testing and calibration with AutoRAE 2
Dimensions
117 x 76 x 24 mm
Weight
206 g including Li-ion battery and clip
Sensors
LEL catalytic bead, O2 electrochemical, CO electrochemical, H2S electrochemical
Battery
Rechargeable Li-ion
Runtime
15 hours continuous non-wireless. 12 hours continuous wireless
Display
Graphic monochrome 44 x 33 mm with 2-colour backlight
Keypad
Two-button operation
Alarms
100 dB audible, vibration, flashing LEDs, on-screen indication, remote wireless notification, Man Down alarm, panic button
Datalogging
6 months continuous for 4 sensors at 1-minute intervals. User-configurable from 1 to 3,600 seconds
Wireless network
RAE Dedicated Wireless Mesh, standard WiFi, NB-IoT
Wireless range
Up to 200 m (Mesh). Up to 100 m (WiFi). Up to 5 m (BLE)
GPS
Built-in GPS module
Calibration
Two-point calibration, manual or automatic with AutoRAE 2
Operating temperature
-20°C to 60°C
Humidity
0 to 95% RH non-condensing
IP rating
IP-67
Certifications
IECEx, ATEX, US and Canada approvals, CE, FCC Part 15, Bluetooth 4.0
Warranty
2 Years on device and sensors (1 year for HCN sensor)
Carbon Monoxide
CO
Hydrogen Sulphide
H2S
Hydrogen Cyanide
HCN
Combustible Gas
LEL
Oxygen
O2
- Aviation & Transportation
- Chemical Manufacturing
- Confined Space & Compliance
- Energy (Oil & Gas)
- Food & Beverage
- Landfill & Remediation
- Marine & Maritime
- Mining & Minerals
- Power Generation & BESS
- Technology & Semiconductor
- Water & Wastewater
The MicroRAE is available with three wireless options: RAE Dedicated Wireless Mesh (up to 200 m range), standard WiFi (up to 100 m range) and NB-IoT which operates over a publicly available cellular network. The NB-IoT option is particularly suited to remote sites and lone worker programs where no existing wireless infrastructure is available.
A standard 4-gas detector monitors and alarms locally for the worker wearing it. The MicroRAE does the same but also transmits real-time gas readings, GPS location, alarm status and Man Down alerts to a remote monitoring system simultaneously. This gives safety managers live visibility into worker status across the site from a central location.
The Man Down alarm detects if the instrument has been in a non-upright position or stationary for a set period, triggering a pre-alarm followed by a real-time remote wireless notification if not cancelled. This ensures others are alerted to a potential worker emergency even if the worker cannot call for help.
The MicroRAE is compatible with Honeywell ConneXt Plus, ConneXt Pro, ConneXt Loneworker and Safety Communicator for real-time remote monitoring and fleet management.
Yes. The MicroRAE supports fully automated bump testing and calibration using the AutoRAE 2 system, reducing the manual effort required to maintain fleet compliance.
The MicroRAE provides 15 hours of continuous runtime in non-wireless mode and 11 hours in wireless mode from a single charge of the rechargeable Li-ion battery.
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