Youmile Thermostat PWM Fan Module, PC Fan Temperature Speed Controller Governor CPU High Temperature Cooling Module 4 Wire 3 Channels DC 12V NTC 50K Thermal Sensor/Buzzer Alarm sounder Module

• ✅[Product Usage]: The fan thermostat can automatically adjust or manually adjust the speed of the four-wire PWM fan, so as to dissipate heat for your computer in time and improve the running speed of your computer.
• ✅[Temperature Probe]: Fan thermostat with temperature probe. When the temperature detected by the temperature probe is greater than the maximum acceleration temperature, the fan thermostat will make the fan work at full speed. When the temperature is below the minimum acceleration temperature, the fan thermostat will make the fan spin at the minimum speed.
• ✅[Buzzer Alarm]: The fan thermostat with buzzer will sound when your FAN1 or FAN2 fan fails. When the fan resumes speed, the alarm will be automatically eliminated.Stall alarm minimum speed: 700-800 rpm.
• [Specification]: Working voltage: DC12V. Circuit Load Capacity - Current of each output: 5A(Max.); 3 fans working at the same time Maximum current: 9A.
• [Package Content]: 1 pcs DC 12V fan speed controller, 1 pcs DC female wire 20cm. Please note: The fan speed controller module only supports standard for Intel standard four-wire PWM fans, and cannot control non-standard reverse timing fans.

If you want to reset the fan, the fan thermostat must be disconnected from the power supply, toggled the setting switch, and finally powered on again. Specification Circuit Board Size: 50mm*43mm*13mm(L*W*H) Positioning Hole Position: 44mm*37mm Hole Diameter: 3mm Working Voltage: DC12V Bus current: 9A(Max.) Temperature Probe Parameters: 50K B=3950 Stall Alarm Minimum Speed: 700-800 rpm [Fan1 Channel PWM Setting] TFL = OFF : FAN1 pwm output range is 20%-100% TFL = ON : FAN1 pwm output range is 40%-100% Please refer to Figure 5 for the temperature control settings of the Fan1 channel. (Note: the above range is only the PWM range, the actual fan control effect will vary according to different fans) [Fan2, Fan3 Channel PWM Settings] Control the pwm of Fan2 and Fan3 channels respectively through two potentiometers on the circuit board. The pwm output range of FAN2 is 10%-100%. The pwm output range of FAN3 is 10%-100%. [Buzzer Alarm Setting] BF1 and BF2 are fan stop alarm functions. BF1 switch : FAN1 stop alarm function switch BF2 switch : FAN2 stop alarm function switch (If BF1 and BF2 are both turned on (ON), the controller will alarm if any one or both of FAN1 and FAN2 stop. Fan3 has no alarm function.) Package Included: 1 x DC 12V Fan Speed Controller 1 x DC female wire 20cm