Car Air Parking Heater Switch High Sensitivity Car Heater Controller LCD Switch for Diesel Heater 1PREMIUM MATERIAL: The shell is made of premium ABS material, which is wear proof and has good insulating properties and can stand the test of time. 2SELECTED ELECTRONIC PARTS: The electronic parts used in the car heater switch are carefully selected for their good conductivity and durability. 3WIDELY APPLIED: Widely used in vehicle heaters such as car heaters, air diesel heaters and parking heaters. It works perfectly with both in cars and trucks. 4MULTIFUNCTIONAL SETTINGS: Supports free setting of fuel oil, electricity and temperature. It also features manual refueling, timer start or stop, and time setting to provide more flexibility and convenience. 5HIGH SENSITIVITY AND RELIABILITY: Provides high sensitivity, reliability and stable performance. And the size is accurate, fine workmanship, easy to install and use.