Feature: or remove users via SMS commands. Relay or open time is programmable. Can be operated anywhere, no distance restrictions. -band, can be used in the global GSM network. No need for remotes or buttons for different users. Safe - use caller ID for identification, unknown callers will be ignored. Up to 200 authorized phone numbers can be configured at a given time. One output with a relay rating of 3A/240VAC for connecting a door or machine switch. Multiple applications. (doors, bollards, barriers, garage doors, shutters and access doors or machines). The relay action will return an SMS confirmation to the or authorized phone, this feature can be by the . No call charges. The GSM GPRS trunk exchange rejects calls from authorized numbers and then performs an open/ operation on the first "ring". GSM frequency: -band 850/900/1800/1900MHz Network: 4G Output: NC/NO dry contact, 3A/250VAC DC power supply: 9-24VDC/2A Power consumption: 12V input maximum 50mA / average 25mA : Support 3V Antenna: 50SMA antenna interface Temperature range: -20-60 Humidity range: 90% relative humidity Dimensions: 96.5x50x31.5mm/3.8x1.97x1.24in Describe The GSM door opener is a powerful GSM relay that can be used for authorized access control, control doors, switching of remote devices and parking . Also, it can be used where a system, machine or device needs to be turned on/off remotely with free calls from your cell phone. type: G202 GSM Gate Door Opener color:Black Material:ABS Package Contents: 1 x G202 GSM Door Opener Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.