Description: This is a gas alarm sensor, remind you to monitor natural gas safety. A perfect safety tool used in RV, marine, vehicle. It can detect leaks of propane, butane, LPG, natural, city, coal, common flammable gases. It is very easy to use and convenient to install. Features: 1. Unique design of alarm sensor body, high reliability sensor. Easy to install and use.2. Made of premium material, safe and stable. Durable for long term use.3. Two states of indicator light, red light indicates alarm, yellow light indicates error.4. Built-in and output switch terminal pair for integration in external alarm system.5. It is applicable to vehicles, marine, such as RVs, boats, yacht and so on.Specifications: Condition: 100 percent Brand New Color: White Material: MetalandPlastic Operating Voltage: 12V DC Standby Current: le 90mA Alarm Current: le 100mAWarm-up [ stabilization) Time: 180s Alarm gas level: 10 plusmn5 [ percent LEL), 0.5 plusmn0.25 [VOL percent ) Alarm indicator: red LED, flashing Alarm sound level: ge85dB or mFault indicator: yellow LED on, continuous tone Operating temperature: -10C - and50CEnvironment Humidity: le95 percent RH Installation: wall mounted Size: 11.5x7x5cm or 4.53x2.76x1.97in Weight: 151g Note: Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. Package Included: 1 x Alarm Sensor