This GSM door opener has a remote on / off switch for authorized calls for free calls, which can be operated from anywhere without distance limited

No call charges The GSM relay switch answers the call from the authorized number and then performs an on / off operation at the first "ringing".

Add or Remoe Users with the SMS Text Command Up to 200 authorized phone numbers can be configured at the specified time. In addition, no remote controls or buttons for different users need to be proided.

Use the Caller ID to identify and ignore unknown callers. The relay process sends a confirmation ia SMS to the owner or an authorized call that can be edited by the user.

* Voltage: 6-24V AC/DC
* With small size: 66 x 46 x 27mm
* Open doors with a mobile phone free of charge
* Low-cost investment in equipment
* Easy installation and maintenance
* No call charges
* Easy: just dial GSM gate number
* Fast: replaces traditional remote control/can be installed to work together with an existing system

• Operation of GSM gate control system is based on number identification performed by a GSM modem

• System is easy to use and maintain: you can specify the phone numbers from which the system can be controlled