1. Universal use, remotable auto-open and close.
2. Quick & easy installation.
3. Optional control units for remote control central door lock.
4. Main unit of one-to-three remote controller for central door lock (optional length of wire: 29m, 39m).
1. QTY: 20 sets. 2. Packing size: 62 x 26 x 52cm. 3. G.W: 28kg.