Gas Detector Sensor Gas Detected Hydrogen Measurement Range 0 to 1 000 ppm Compatible Detector Model/Series AreaRAE Plus AreaRAE Pro MultiRAE Lite ToxiRAE Pro Sensor Type Electrochemical Compatible Detector Manufacturer Part Number AreaRAE Pro/Plus Diffusion MultiRAE Lite ToxiRAE Pro Sensor Life 1 yr Series AreaRAE Plus AreaRAE Pro MultiRAE Lite ToxiRAE Pro Sub-Brand RAE Resolution 2 ppm Operating Temperature - Maximum 122 Degrees F