12V/24VDigitalCarSpeedometerSpeedMeter+OdometerGaugecar truck Speed Odometers LCD Display Gauges Specifications * Name:lCD Car Speed Odometers* Working voltage: DC9V-36V, * Working environment temperature: -20 C - -50 C, * Working environment humidity: 45% - 75% RH * Overspeed alarm: driving speed set value * When overspeeding, the upper right corner alarm displays a prompt, sound prompt * Measurement accuracy: 0.1% Attention: * First connect the signal cable and then connect the power cable! ! ! * As long as it is a three-input mileage sensor model is common Package Included(as picture): 1* Digital Car gauge Note: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item.2. Please allow 1-3mm error due to manual measurement. 3.Please make sure you can Installation,if you need help you can