Have you ever encountered it? Sometimes due to careless work, when you leave the car, you forget to turn off the motor of the car and forget to turn off the front lights, so the battery is completely exhausted. This is an extremely unpleasant thing.
Here is a circuit design device that will alert you when the motor is off and the headlights are still on and off. This device is easy to install, two wires are connected to the electrical system of the car, and one is connected to the chassis of the car body.
Liquid Crystal Display For Clock
Dongguan Yijia Optoelectronics Co., Ltd. , https://www.everbestlcdlcms.com