This parking heater circuit board controller is designed to regulate and manage the heating system in your vehicle. It ensures optimal performance of the car's air conditioning and heating systems. The main motherboard and control boards are crafted with precision to provide reliable and efficient operation, making your driving experience more comfortable. Features -Color:Multi -Material:Plastic,metal -Size:10.50X5.80X3.00cm/4.13X2.28X1.18in -High efficiency control: precisely adjusts the car air conditioning system to provide a comfortable driving environment. -Multifunctional design: features multiple modes and temperature control options to meet various needs. -Stable and reliable: utilizes circuit boards and controllers for durability and reliability. -Easy installation: simple and quick to install in the vehicle, ensuring convenience and efficiency. -Strong compatibility: suitable for various car models and air conditioning systems, offering wide applicability Package list: 3 x air conditioning mainboard controller