Features: 1Unique design of alarm sensor body high reliability sensor. Easy to install and operate 2Made of premium materials safe and stable. Durable for long time use 3Two state of indicator light red light indicates alarm yellow light indicates failure 4Built in and output switch terminal pair for integration into external alarm system 5It is applicable to Leisure craft vehicles and 12V Scenarios such as motor homeboatyacht general marine and so on Specification: Description:This is a gas alarm sensor remind you to monitor natural gas safety. A perfect safety tool usedin motor marine and home. It can detect the leakage of propane butane LPG naturaltown coal common flammable gasses. It is very simple to use and convenient to install.Features:1. Unique design of alarm sensor body high reliability sensor. Easy to install and operate.2. Made of premium materials safe and stable. Durable for long time use.3. Two state of indicator light red light indicates alarm yellow light indicates failure.4. Built in and output switch terminal pair for integration into external alarm system.5. It is applicable to Leisure craft vehicles and 12V Scenarios such as motor homeboatyacht general marine and so on.Specifications:Condition:100% Brand NewColor:WhiteMaterial:Metal+PlasticOperating Voltage : 12V DCStandby Current : 90mAAlarm Current : 100mAWarm-up (stabilisation) Time: 180sPower Indicator : Green LEDAlarm Gas Level : 10 5 (% LEL) 0.5 0.25 (VOL %)Alarm Indicator: red LED flashingAlarm Sound Level : 85dB/mFailure Indicator: yellow LED on continuous toneOperating Temperature: -10C ~ +50CEnvironment Humidity : 95 % RHInstallation : wall-mountedSize: 11.5*7*5cm/4.53*2.76*1.97inWeight: 153gPackage Included: 1 * Alarm Sensor 1 * Screw 1 * Screw Cap Note:Please allow 0~1 inch error due to manual measurement. Thanks for your understanding.Please note that the new type and old type of this product will be sent randomly and make sure you will not mind before ordering.