2T-Technology Voyager Mobile Entry Plus. (VME+) 2G Dial to open GSM Switch. 

Features

• Waterproof! Vital when the installers box is full
• 12V DC PSU preferred
• Open Access by default. Simply call the device number to
• open the gate. Anyone with number can access.
• 50 to 200 Users, if phone numbers programmed
• Simple English command set up functions, by SMS text
• Sends a warning message if gate left open
• Remote query gate status Or Receive a text on every event
• Available in 2G and 2G/3G versions
• Iphone & Android App's available, Free!
• SIM & PSU can be supplied for a complete package
• All units have extended antenna