It can be used as signal interface switching for PLC or other industrial control boards. The output voltage is regulated by adjusting the duty ratio of the PWM. The modules are small in size and easy to use in different places. MCU embedded technology Easy to operate, fine tuned by potentiometer Select the PWM signal input level range through short-circuit The module is smaller, easy to carry and use Work Voltage:DC 12V-30V; ( 100MA) PWM Receiver Frequency:1KHZ-3KHZ PWM signal input level range: The of 4.5V to 10V level. The short cap install in '5V'. This level is used for normal controller or 5V MCU The of 12V to 24V level, so inserted in 24V. The short cap install in '24V'. This level is used for normal PLC controller Conversion range:0%-100% PWM to 0-10V Allowable error:5% GND:Ground GND:Negative of input signal VOUT:Output Voltage 0-10V GND:Output Voltage Ground Operation instructions: After power on, without input signal, the output is 0V, so only input can output. The first time when the power is on, it is best to do a calibration debugging:Input a 50% duty ratio signal to PWM/GND and adjust the relative amplitude short cap. The frequency is 1KHZ-3KHZ, Measured VOUT and GND with a multimeter and it will display 5V. Adjust potentiometer to make sure display 5.00V on multimeter. This will calibrate your pulse signal to this module. When the frequency changes, the correspondences may be offset and need to be re calibrated. The output voltage can be adjusted by adjusting the duty ratio. The accuracy can be controlled by adjusting the potentiometer. colour:Blue + green Material:PC+ metal Package Contents: 1 * PWM to Voltage Converter Module Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.