PD-MV1001 is a moving object sensor that can detect range of 360°and it's working frequency is 5.8G.The advantage of this product is stable working state(stable working temperature:-15℃~+70℃,high freguency output<0.2mW)so that it's safe and performs better than infrared sensor.
It can installed inside of product that is made of glass and plastic because that these materials make little effect to microwave.
Connect the product as shws below:you can change a commom light to an automatic light.