RunLeader RL-TM004 Measuring 2 Groups Temperature Thermometer with Double Temp Sensor Backlit Display for ATV UTV Dirtbike Motobike Motocycle outboards Snowmobile pitbike PWC Marine Boat Waterproof Temperature Thermometer measuring 2 groups current temperature, Engine Thermometer MAX Temp and setting over temperature warning function Replaceable CR2032 battery & external power,data stored automatically after replacing the battery,green backlight large LCD design temperature unit display can be set by user,temperature sensor type can be select by user Waterproof IP68,have got CE and ROHS certification