Anntem 433mhz Wireless rf Remote Control Switch Relay Circuit Module dc3.5 3.7v 5v 9v 12v Battery Power on Off Transfer Micro Mini Small Switch Momentary Controller Line Switching

 Correct access power supply products, The standby mode is default module, NO and COM is disconnected."COM" and "NC" are short circuits. Press the remote control button, NO and COM connection (module LED flashes once) Release the remote control button, NO and COM are disconnected (module LED flashes twice) If the power is turned off or the remote control is used to turn off, NO and COM are disconnected. Performance reference: Visible distance, remote control signal coverage over 20 meters. RF signals can penetrate walls. The module remains in standby and the response is very fast. Since the product needs to consume current in the standby state, if it is used for a long time, please select the power supply. Relay pins "NO" "NC" "COM" are a set of transfer switches, no power output, not positive, not negative, control circuit isolation, is an independent switch. When the relay is working, NO and COM are connected. NC and COM are disconnected. When the relay is released, NO and COM are disconnected. NC and COM are connected.