DC 6-60V 12V 24V 36V 48V 30A PWM DC Motor Speed Controller (PWM) Speed Adjustabl
$30.97
For example, if the maximum motor speed is 500 rpm, it will display 100 at 500 rpm and 50 at 250 rpm. A: If the RPM is set to zero when it’s turned on you can slowly turn up RPM until fans start moving.
