GSM Phone-Call Gate Opener & Relay Switch — Remote Access Control for Automatic Doors, Gates, Shutters & Garages (Easy Install)

Compact, easy-to-install GSM relay that lets you remotely switch machines, barriers and doors on or off simply by making a phone call. It also provides remote status monitoring for opening and closing of railings, shutters, garage doors and similar access points. Designed for access control, remote device switching and parking systems, this straightforward unit enables authorized users to operate doors and equipment from a distance using their mobile phones. To activate, dial the preconfigured user number at the required time — the GSM door opener/relay switch will open barriers or toggle connected machines accordingly. User access can be limited to specified time periods; once the timeout expires the user automatically becomes unauthorized. Ideal wherever you need to remotely turn on/off systems, machines or equipment via phone calls.