It does not "automatically prevent the operation of the power supply"
It can be used as a switch when raindrop falls on the rain board and also for measuring rainfall intensity
Charging Voltage: 16
Wake up and transmit packets in < 2ms
Backup battery lasted for many years Including SD card and RTC libraries and sample code means you can get fast Welded joints
Microwave Body Radar Induction Switch Sensor Educational Robot Kit It does not "automatically preventFeatures: Noncontact detection,moving object detecting Transmitting frequency: 24GHZ,can be widely applied in business,industries,word controlling etc Provide various frequency range standards: UK, F. advanced low consumption PHEMT oscillator Independent transmitting and receiving route, can get the biggest gain,single channel operation High sensibility,high flexibility,low cost,operating distance: 15m Not influenced by temperature,humidity,noise,air