GSM Door Gate Opener Remote On/Off Relay Switch Remote Control Door Access Wireless Door Opener By Free Call SMS Command 4. Support relay delay closing time 0-999 seconds 1. Support global 2G communication frequency 2. Support authorized 1001 user numbers. Support to query number authorized by yourself 8. Support one-click query of all numbers Callny control 5. Support relay to be permanently closed until command interrupts closure 9. Support query device status 7. Support remote restart, remote reset 6. Authorization conservation, support whitelist and blacklist 11. Support authorized number to call in and SMS to control device 10. Support query signal value 3. Support 9-36V wide voltage input Overview: This GSM gate opener features remote on/off switch by authorized phone free calls, which can be operated from anywhere, no distance limit, very convenient. Specifications: Consumption: 12V input Max. 50mA/Average 25mA Temperature : -20~+60°C Clients can use command to get IMEI code of device and then register it themselves Model: G202 Plus Digital Output: NC/NO , 3A/240VAC APP: callny control Humidity : Relative humidity 90% SIM Card: Standard SIM Card Item Size: Approx. 10.3 * 5 * 3.1cm / 4.1 * 2 * 1.2in Supply: 9-24V /2A Antenna: 50 SMA Antenna interface Package Information: Package Weight: Approx. 97g / 3.4oz Package Size: Approx. 11.5*6.3*4cm / 4.5*2.5*1.6cm Package List: 1 * GSM Door Opener 1 * User Manual Card 3. Support 9-36V wide voltage input 4. Support relay delay closing time 0-999 seconds 2. Support authorized 1001 user numbers. Support to query the number authorized by yourself 6. Authorization conservation, support whitelist and blacklist 5. Support the relay to be permanently closed until the next command interrupts the closure