The SHR-12 K1 radio receiver processes any radio signal from compatible transmitters in the SH-12 radio series and converts them into switching commands for potential-free relay contacts. To implement a command from a transmitter, it must first be taught to the receiver once. Teaching a transmitter is done easily via a button. Depending on your preference, up to 60 transmitters can be taught with all buttons or individual transmitter buttons. The assignment of which function the transmitter buttons or transmission commands should perform is done through a selection field. With the help of DIP switches and jumpers, all settings can be conveniently made during on-site installation. Both normally closed and normally open contacts are available for connection. LEDs provide information about the function and transmission behavior, indicating the status of the power supply for both the transmitter and the radio receiver. The variety of functions and settings of the SHR-12 K1 radio receiver allows for use in various applications. Different relay functions for the output can be set as well.

In button operation, the transmitter input and receiver output behave identically. The output is active only while ON is being transmitted. In timer mode, the output remains active for the set time after an ON command and then automatically turns off. The adjustable timer range is between 0.1 seconds and 60 minutes. OFF commands are still implemented. In switch mode, the output remains permanently active after an ON command until an OFF command deactivates it. Regardless of the selected function, the relay can also be controlled via wired connections, for example, through external buttons, code switches, or key switches. The 1-channel receiver SHR-12 K1 is delivered fully ready for connection with a built-in loop antenna. The radio receivers of the SH-12 radio series operate with extremely low interference due to their special transmission characteristics.