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 the 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. Input Voltage: 12 V, RF working mode: Superheterodyne Receiver sensitivity: more than 97 dbm Transmitting distance: more than 100 m (open space) Decoding mode: MCU software decoding Remote storage: 20 Support remote type: EV1527 learning code Working mode: Momentary, toggle, latching time delay (5s, 10s, 15s) Output terminal: NO, NC, COM Remote control battery: 2 x 3 V CR2016 button batteries Note: Maximum input power is 12 V Remote programming Material: plastic (The product printed words may vary depending on the batch, but this does not affect use) Color: As Shown Package Contents: 1 * Receiver module 1 * Remote Control (with battery) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.