DC 12V Single Channel Relay Module RF Wireless Switch Receiver + Remote Control Transmitter DIY Kit 433mhz Arduino Uno Cable and re-screw it

and re-screw it

the MOV's resistance is extremely high

release the remote button

Wait for a moment

5mm male stereo solder connector is typically used for analog signals such as audio

DC 12V Single Channel Relay Module RF Wireless Switch Receiver + Remote Control Transmitter DIY Kit 433mhz Arduino Uno Cable and re-screw itIt's a DC 12V Single Channel Relay Module RF Wireless Switch Receiver + Remote Control Transmitter DIY Kit 433mhz. A great replacement for door open button or other switches of devices, widely used in elevating controller, automobile, household appliances, machine tools, alarm system and other automatic control area. An automatic switch for automatic regulation, with self lock function, allows safety protection and circuit conversion. 315 MHz