Xintex Propane Fume Detector w/Automatic Shut-Off & Plastic Sensor - No Solenoid Valve - Black Bezel Display - P-1BNV-RPropane Fume Detector w Automatic Shut Off & Plastic Sensor No Solenoid Valve Black Bezel Display Detect propane leaks early and automatically shut off gas supply to prevent personal injury and possible explosions. Features Specifications: 2 3 16" Round Black Display with LEDs & Silence Test Button 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