433Mhz 2CH Rf Relay Receiver and Transmitter AC220V — Universal Garage Door & Gate Motor Remote, Smart WiFi Control

Basic operation: press the A button to activate the relay; pressing A again stops it. Latched mode: press A to switch the relay on, press C to switch it off, and press B to stop the relay. To program Toggle mode: press the learning button 2 times, then press A once and B once to save the setting. To set Locked mode: press the learning button 3 times, then press A once, C once and B once to complete the setup.