Features:Specification: electronic temperature control module have a wide Voltages of DC12-48V, support 2.5kHz and 20kHz frequency adjustment, support reverse sequences fan, adopts PCB material, strong and . Measuring ranges The temperature measurement ranges of the fan thermostat module is -9.9C to 99.9C, with measurement errors at low temperature. The error in the ranges of 0-50 is less than 1.2, and the error in other areas is less than 2, can meet your requirements. Application: four-Cores PWM fan temperature controller with control signal of 10V, support common for EBM four wire fan, Suitable choice for use and replacement. 4 Cable:Fan temperature control controller supports conventional high Voltages fan, four-Cores control, with 10V PWM signal. Easy to use: PWM fan controller supports low temperature shut- fan, PWM shutdown or extended Relays to shut fan power, easy to use. Specifications:Material: plastic Size: about 4x7cm/1.57x2.76inch Voltages: DC12 to 48v Note:Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid,Due to the differences between different monitors, the picture may not reflect the actual colorful of the item. Package includes:1 set Digital Fan Temperature Controller