aftermarket water temp gauge that uses factory sensor

• 2022-07-25

If the cost of a mechanical water temperature gauge is 100 yuan, a car company will sell 100000 cars every year, and the reduced cost is 10 million, which is the net profit for the car company. Reducing the water temperature meter can reduce the cost by 10 million yuan, and it will not cause resistance from car owners. If the publicity and public relations are done well, it will even make people feel more advanced. Which car company would be unwilling?

Many cars do not have water temperature meters, but some models are equipped with computer-controlled stepless speed regulating fans and intelligent sensors. Our aftermarket water temp gauge that uses factory sensors. The water temp gauge sensor through the change of its internal resistance, through the change of the sensor to change the current to drive the change of the water temperature gauge, it indirectly tells people the working temperature of the engine. If the engine has high water temperature and water shortage, it will give an alarm. If users want to know the specific data of water temperature, they can purchase and install a water temperature gauge by themselves.

The function of water temperature sensor is to convert the temperature of cooling water into electrical signal, which is mainly divided into two categories. Whatever its internal structure is a thermistor, its resistance value is between 275 ohms and 6500 ohms, and the lower the temperature, the higher the resistance value, and the higher the temperature, the lower the resistance value.

It is through the change of its internal resistance to change the current through the change of the resistance of the sensor to drive the change of the water temperature gauge and tell people the working temperature of the engine. But its function is to provide an analog signal of temperature change to the engine control unit. Its power supply voltage is a 5V power supply provided by the control unit, and the signal returned to the control unit is a linear change signal of 1.3v-3.8v.

Adding water to the water tank is a necessary item for your daily inspection. If you look at the water temperature gauge, it is the time to reach the red line. However, it is a little late. When the water temperature reaches the red line, it means that the car has a fault. Generally, the water temperature will not reach the red line.