Feature: 1. FAST AND ACCURATE: Adopting excellent semiconductor sensor, this propane gas detector can quickly and accurately detect gas leakage. 2. REAL TIME DISPLAY: The RV propane gas alarm can display concentration levels in real time digitally and provide the earliest warning through 85dB alarm. 3. WIDE WORKING VOLTAGE: The propane detector is with a DC 12V ±20% wide working voltage and complies with UL1484 safety standards. 4. RESET FUNCTION: You can activate the reset or mute circuit to temporarily mute the detector while ventilated. 5. WIDE APPLICATIONS: This natural gas detector can be used to detect propane gas leakage in RV, truck and other similar applications. Specification: Item Type: Propane Gas Detector Material: ABS Power Supply: 12VDC Working Voltage: 8-16 VDC Working Temperature: -31℉ to 150℉ (-35℃ to 66℃) Relative Humidity: 15% to 93%. Package List: 1 x Propane Gas Detector2 x Screw2 x Anchor3 x Nut1 x Adhesive Tape1 x User Manual