Type:Garage Door Openers DC Power supply:Standard adapter: DC 12V/1.5A GSM Frequency:850/900/1800/1900Mhz/ 3G WCDMA SIM interface:1.8V/3V SIM Card External antenna:SMA Antenna interface, 50 Ohm Max.Autorized Number:100 Max. Room Number:200 Max. RFID Card:2000, non-contact RFID Card(M1 S50) Exterior dimension:273mm*130mm*50mm Wall-mount Dimension:252mm*113mm*33mm Show More