4 Digital LED Blue Tachometer RPM Speed Meter+Hall

The vehicle sensor is the input device of the vehicle computer system. It converts the information of various working conditions during the operation of the vehicle, such as vehicle speed, temperature of various media, and engine operating conditions, into electrical signals and sends them to the computer, so that the engine is in the best condition. working status. There are many sensors for vehicles. When judging the failure of the sensor, we should not only consider the sensor itself, but the entire circuit that has failed. Therefore, when looking for faults, in addition to checking the sensor, it is also necessary to check the wiring harness, the connector and the related circuit between the sensor and the electronic control unit. One of the characteristics of automotive technology development is that more and more components are electronically controlled. According to the function of the sensor, it can be classified into sensors that measure temperature, pressure, flow rate, position, gas concentration, speed, brightness, dry humidity, distance and other functions. They perform their own duties. Once a sensor fails, the corresponding device will work. It will not work properly or even work. Therefore, the role of the sensor in the car is very important. Automotive sensors used to be purely on the engine and have been extended to the chassis, body and lighting electrical systems. There are more than 100 sensors used in these systems. Among a wide variety of sensors, the common ones are: intake pressure sensor: it reflects the change of absolute pressure in the intake manifold, and provides the ECU (engine electronic control unit) with a reference signal for calculating the duration of injection;

We confidently assure you'll be satisfied with what you get.However, If  there's a chance that you are not satisfied with our goods or something else, please let us know before leaving us a Negative feedback. We will try our best for 100% customer satisfaction. Your 5-Star Positive Feedback is much appreciated to us, and your satisfaction is our greatest motivation to move forward.Welcome to Shop Here! Want more Items? Please come & visit our SHOP.

*Shipping and Packaging All it will be double checked and well packed before sending.It will be dispatched within 5 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote areas,it may take a little longer).Your satisfaction is our first priority.

*If you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.