Feature: 1. Measurement Function: Motor speed controller with electrical parameter measurement function can measure input voltage, output current. Embedded installation, support brush motor. 2. Basic Values: Motor speed controller's measuring voltage is DC12 to 36V, measuring current is within 8A, the starting current is 100ma. 3. LCD Large Display: Motor speed governor can stop output when overload to achieve the purpose of protecting the motor speed governor. Also has a large LCD display window, large font. 4. Speed Knob: Motor speed switch has a knob with switch function. Easy to use, can be directly connected with the motor, can control the motor speed from 0 to 100 percent. 5. Circuit Optimization: Duty cycle adjustment range is wide, motor adjustment is stable without noise and vibration, with power indication, stable circuit design, sophisticated welding switch, stable. Specification: Item Type: Start Switch Motor Speed Controller Material: ABS Model: Z2 5 Working Voltage: DC12-36V Measuring Voltage: DC12-36V Measuring Current: Within 8A Starting Measurement Current: 100ma Current Accuracy: 5% Protection Current: 8A Continuous Current: 5A Output Voltage: Linear under load Digital Scale: 0-100 percentage meter Forward Reverse Rotation: One way Speed Regulation Type: Current regulation Speed Regulation: Potentiometer 0-5V Speed Range: 0-100 percent Control Frequency: 15KHZ Display Window: Approx. 41mm x 48mm / 1.61 x 1.89in Support Motor: Brush motor Wiring Type: Fence type terminal Potentiometer Opening: Approx. 7mm / 0.28in Panel Opening Size: Approx. 63 x 63mm / 2.48 x 2.48in (L x W) Installation Method: Embedded . Package List: 1 x LCD Motor Speed Controller Voltage Meter Note: 1. The wiring must be divided into positive and negative, not directly input 220V household electricity.2. The input voltage should be equal to the rated voltage of the motor, within 11‑40V, such as motor rated voltage 12V, input 12V, motor 36V input 36V.