This Crowtail microwave sensor module is the use of Doppler radar design principles （Doppler effect） of the microwave detector moving objects, mainly used in automatic door control switches, security systems, automatic recording control system of ATM, automatic train signal and other places. And we update it for usin with our crowtail modules, you can connect it with crowduino and Arduino.
Independent of temperature, humidity, noise, air, dust, light and other effects, suitable for harsh environments
Anti-RF interference ability
Do not constitute harm to the human body due to its low power