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QRAE Plus Economical 4-Gas Confined Space Monitor with Pump

Orderable Items The full-featured QRAE Plus one to four-sensor confined space gas detector is rugged, water-resistant, and long running. QRAE Plus is ideal for use in tough environments such as waste water treatment plants, marine/off-shore refineries, coal mines, power plants, and pulp/paper mills.

  • One-to-four plug-in smart sensors for combustibles, O2, H2S, or CO
    • Choose from 12 optional interchangeable plug-in toxic gas sensors

  • Rugged RFI/EMI-resistant case withstands water, dust, and harsh environments

  • Strong, built-in sample draw pump with optional collapsible sample probe

  • One-button calibration with auto-zero

  • Large keys; use even with gloves

  • Loud audible alarm and bright visual alarm

  • Up to 20 hours continuous operation on rechargeable Li-Ion battery
    • Interchangeable Li-Ion and alkaline battery packs





  • Confined space entry in:
    • Wastewater treatment plants
    • Shipyard and maritime confined spaces
    • Landfill operations
    • Trenches, silos, and railcars
    • Sewers and manholes

  • Refineries and petrochemical plants
    • Plant shutdowns
    • Emergency response

  • Offshore drilling

  • Power plants

  • Pulp and paper industry

  • Steel mills





The QRAE Plus one to four-sensor gas monitor offers all the features needed for confined space monitoring in a tough, compact instrument. User-friendly features include easy-access battery pack and simple button operation. Use ProRAE Suite Software to store up to 16,000 data points for download to a PC.


About ProRAE Software
ProRAE Suite Software for QRAE Plus, MultiRAE Plus, and MultiRAE IR models allows download of datalogged data and configuration settings to a PC and upload of new configuration settings to the instrument.

ProRAE Studio Software provides the same functionality for QRAE II, EntryRAE, MiniRAE 3000, ppbRAE 3000, and Ultra-RAE 3000 models.

Automatic Bump Test and Calibration System

  • Automatic calibration, bump test, and charging
  • PC-free, pushbutton easy
  • Reduces need for specialized service technicians
  • Monitors are always calibrated and charged
  • Increases user confidence/safety

The AutoRAE single controller/cradle system can be expanded to 10 cradles. Cradles snap onto other cradles and controllers snap onto other controllers for complete scalability. AutoRAE is available for MultiRAE Plus, QRAE, QRAE Plus, MiniRAE 2000, and EntryRAE. The QRAE II partners with the new AutoRAE Lite for lower operation cost. Contact SKC for more information.

Free training video provided with all RAE instruments.