Description The Fan Speed Controller is a practical device designed to regulate the speed and temperature of various types of fans. With its automatic shutdown feature, adjusting the fan speed according to the room temperature. Made of PC materials, this temperature control speed controller is easy to install and does not require any professional technical skills. Features -Color:Red -Material:PC -Size:4.30X1.80X1.20cm/1.69X0.71X0.47in-Practical: The product is an automatic shutdown single-channel four-wire fan temperature controller -Wide compatibility: The four-wire design of the controller allows it to be compatible with various types of fans -Convenient: The temperature control feature of the controller adjusts the fan speed based on the temperature of the room -Easy to install: The installation process of the controller is easy and does not require professional technical skills -Practical: The controller is made of firm PC materials to ensure durability and reliabilityPackage list: 1 x fan controller board 1 x probe