ToxiRAE Pro (LEL)

Manufacturer: RAE Systems
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The ToxiRAE Pro LEL is the world’s first wireless personal combustible gas monitor. The ToxiRAE Pro LEL takes worker protection to the next level by providing safety professionals wireless access to real-time instrument readings and alarm status from any location for better visibility and faster response. The ToxiRAE Pro LEL promptly detects and accurately monitors explosives and combustibles in concentrations from 0 to 100% of the lower explosive limit (LEL). With an onboard library of 34 correction factors, the ToxiRAE Pro LEL can be programmed to automatically read in % LEL of the specified compound.

Key Features

  • Wireless access to real-time instrument readings and alarm status from any location
  • Unmistakable five-way local and remote wireless notification of alarm conditions
  • 34 built-in LEL correction factors
  • Largest display in its class
  • Reliable, rugged, and intrinsically safe
  • Continuous datalogging
  • Easy to use


  • 4.6" H x 2.4" W x 1.2" D (118 x 60 x 30 mm)


  • 8.29 oz. (235 g.)


  • Catalytic bead LEL sensor with 0 to 100% LEL range and 1% LEL resolution

Response Time

  • (T90) < 15 seconds

Detectable Gases

  • Combustible gases and vapors from paints, coatings, fuels, degreasers, adhesives, solvents, resins, etchers, inks, pesticides, herbicides, etc. using 34 onboard correction factors


  • Rechargeable Lithium-ion battery
  • Operating time: > 12 hours (normal operation)
  • Recharge time: < 4 hours through charging cradle


  • Graphical LCD display with white LED backlighting (activated when monitor is in alarm or with a button press)

Display Readout

  • Real-time reading of % of lower explosive limit (LEL); battery status; data logging on/off; wireless on/off and reception quality
  • Peak values
  • Calibration and measurement gases; correction factors


  • 2 buttons for operation and programming


  • Diffusion


  • Automatic with AutoRAE 2 Test and Calibration Station2 or manual

Alarm Modes

  • Wireless remote alarm notification1,2; audible (95 dB @ 30 cm), vibration, visible alarm (flashing bright red LEDs), and on-screen indication of alarm conditions
  • Additional diagnostic alarm and display message for low battery


  • Continuous datalogging with a three-month capacity (at one-minute intervals)
  • User-configurable datalogging interval (from 1 to 3,600 seconds)

Communication and Data Download

  • Data download and instrument set-up on PC via charging and PC comm. cradle
  • Data download via AutoRAE 2 Automated Test and Calibration Station
  • Wireless data and status transmission via built-in RF modem (optional)

Wireless Network

  • RAE Systems Dedicated Wireless Network (Wireless functionality is scheduled for availability in 2011 in North America and Europe. Contact RAE Systems for availability in other regions)

Wireless Frequency

  • ISM license-free bands

Wireless Range

  • (Typical) 300 feet (100 meters)

Operating Temperature

  • -4° to 122° F (-20° to 50° C)


  • 0% to 95% relative humidity (non-condensing)

Dust and Water Resistance

  • IP-65 rating for dust and water ingress protection (validated by an independent test laboratory)

Hazardous Location Approvals

  • US and Canada: Class I, Division 1, Groups A, B, C and D. T-code T4 Class I, Zone 0 A/Exia IIC T4
  • Europe: ATEX: , II 1G, Ex ia IIC Ga T4; IECEx: Ex ia IIC Ga T4
  • China: Ex ia IIC T4

CE Compliance (European Conformity)

  • EMC directive: 2004/108/EC. R&TTE directive: 1999/5/EC. ATEX directive: 94/9/EC

Performance Test Compliance

  • C22.2 No 152
  • ANSI/ISA-12.13.01


  • Two years on LEL sensor and non-consumable components
  • One year on battery and other consumable parts
Specifications are subject to change

Wireless units have a functioning RF modem and are ready for wireless deployments; wireless-capable units can be upgraded to wireless in the field for a fee; Non-wireless units cannot be upgraded to wireless; additional equipment and/or software licenses may be required to enable remote wireless monitoring and alarm transmission

  • Construction
  • Foundries
  • Steel Mills
  • Oil and Gas
  • Pharmaceutical
  • Utilities
  • Water and Wastewater
  • Welding/Hot Work