•Inching mode: press the remote control the relay will connect, and then release the remote control to disconnect the relay
•Self-locking mode: press the remote control the relay will connect, and then press the remote control again to disconnect the relay
•Interlock mode: press the remote control key A to connect the relay and press the remote control key B to disconnect relay.
•Delay mode: press the remote control the relay will connect, release the remote control and start timing. After 5S, 10S and 15S (3 gears), the relay will be automatically closed.