Built-in function, Stop when encountering resistance The conductive rubber strip is hollow, with conductive metal wires on the top and bottom. The normal state is disconnected. When encountering resistance, the top and bottom are closed to conduct electricity. The controller sends a stop to protect the door or the items under the door. Waterproof when blocked, The inside of the stopper is equipped with a waterproof silicone pad to prevent water damage Installation: The whole set of products includes: D Host with sealing pin 2 conductive rubber strips 3 sealing pins The host seals the machine by inserting one end of the rubber strip tightly, and the other end also uses the matching The sealing pin can be inserted tightly (note that the sealing pin is aligned with the card slot and sealed tightly) When installing on the rolling door, use strong glue to fix it Leave a 2.5 cm between the two ends of the rubber strip and the track opening need to purchase strong glue by themselves Step 1: New stop code clear code: the stop code (must be synchronized) and V at the same time, and hold for 3 seconds (do not release in the middle), then the stop code indicator flash 5 times, then go out, this time it means that the data is cleared. Note! Do not perform this operation on the old remote control : Stop code copy, hold the old remote control in your left hand and the new stop code in your right hand, try to get them close together and the corresponding button without letting go. When the stop code indicator is always on (no longer flashing), the copy is successful, and the other buttons are analogous. Method: Get as close as possible and the door opening button at the same time Color:As Shown Material:plastic Package Contents: 1 * Controller 1 * 1 meter cable 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.