Gasoline Fume Detector & Blower Control w/Plastic Sensor - Chrome Bezel Display. Detect gasoline leaks early to prevent personal injury and possible explosions.Built in automatic blower control.. Features/Specifications:. 2-3/16" Round Chrome Display with LEDs & Silence/Test Button. Automatic Ventilation Blower Control. 68 dBA Alarm will sound & Red LED will light at 20% of the LEL. Simple Installation. 9-30VDC. Operating Temperature: -40F to 185F (-40C to. 85C). Reverse Polarity Protected. Current Draw @ 12VDC: Nominal:55mA / Maximum:95mA