Telescopic doors 1+3 means there are 4 tracks, with 1 fixed door,the other three doors sliding together.
The advantages of automatic telescopic doors
The advantages of telescopic door mainly lie in: less space occupation, but also through the door panel to make the size wide.
Telescopic doors 1+4 means there are 5 tracks, with 1 fixed door,the other four doors sliding together.
Can be equipped with small infrared probe, wireless single key control panel switch, voice and smart home system, the switch is usually with automatically open and close function