Brand Unbranded
Temperature -9.9 ℃ to 70.1 ℃
Working current 35mA (12V) 22mA (24V)
Operating Voltage DC8-60V
Probe Specifications NTC 10K B = 3950
accelerating 0-60 ℃
full temperature 10-70 ℃
Speed measurement 10-9990 rpm
Stall warning speed less than 375rpm

Check the listing for details. Heat Dissipation PWM 4 Wire Fan Temperature 2-Way Speed Controller Board Module. Condition: New. Listed at 6.89 USD. The switch can be set to stall alarm function (external AC buzzer sounding, off by default). Stall warning speed: less than 375rpm. Basic speed settings: basic speed setting for the fan speed to adjust the thermostat before start, which is lower than the temperature of the fan speed during acceleration.

$5.51
$6.89