Features:PWM signal frequency range is 2KHZ-20KHZ, maximum is 20KHZ, default minimum is 2KHZ.Default function is converting 0-10V into 0-100% 2KHZ PWM signal; output frequency can be set by adjusting potentiometer as needed.There are two kinds of PWM signal, PNP-PWM output and NPN-PWM output;the PNP-PWM output is only 5V level, NPN-PWM output is 5V and 24V level.NPN-PWM signal output supports common-cathode connection and common-anode connection, 5V and 24V two levels. When output 24V level, it need 24V power supply.For PNP-PWM output, the level can only be 5V. Can only use common-cathode connection, and connect to MCU, etc.Output PWM signal frequency is adjustable within 2KHZ-20KHZ; there are total 11 positions, respectively corresponding to 2KHZ, 4KHZ, 6KHZ, 8KHZ maximum 20KHZ, default frequency is 2KHZ.Specifications:Type: Voltage to PWM signal moduleModel: V-PWMInput Power Supply Current: >200mASize: Approx. 45 x 47 x 18mm/1.8 x 1.9 x 0.7inWeight: 20g(approx.)Package Includes:1 x Converter Module Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.. Have a great time shopping!