1. 2. Small body and stable performance. 3. This module is programmable and can realize thousands of functions. 4. Work performance is stable and reliable 5. Built-in timing circuit can effectively ensure long-term operation of the module 1. Turn on the power, the relay 1 is closed after N seconds of closing; then the relay 2 is closed after N seconds of closing. 2. Turn on the power, the relay 1 is turned off after N seconds of closing; then the relay 2 is turned off after N seconds, and then cycles. 3. When the power is turned on, the relays 1 and 2 are not activated. When there is a signal or a button is triggered, the relay 1 is turned off after N seconds is closed; then the relay 2 is turned off after N seconds and then turned off until the next trigger, repeating the same action. By programming the signals 1, 2, any control of the relays 1 and 2 can be achieved. 4. When signal 1 has a signal, relay 1 is closed and relay 2 is turned off; 5. When signal 2 has a signal, relay 1 is turned off and relay 2 is closed. 6. Only the NPN sensor signal can be connected, and the sensor signal can be programmed to realize any control of the relay. 7. When signal 1 has a trigger, control relay 1; when signal 2 has a trigger, control relay 2. 8. Turn on the power, control the motor to rotate for N seconds, then reverse N seconds, and cycle. 9. When the signal 1 has a signal, the motor is controlled to rotate forward; when the signal 2 has a signal, the motor is reversed. Material:Plastic + metal colour:black Package Contents: 1 * Relay Module Only the above package content, other products are not included. Note: Light shooting 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. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Due to differences in shooting equipment, displays, and production batches, the product may have slight color differences. This is normal, please refer to the actual product. We have tried our best to restore the true color through professional equipment, but we still recommend that you watch it under natural light for the most accurate visual effect.