GSM Gate Opener, GSM Remote Control Relay Switch, Automatic Remote Access Controller, Garage Door Automatic Controller

About this product

*★★ Adopt GSM / 2G net communication, without any distance limitation, it can be used anywhere. 850/900/1800/1900MHz quad-band GSM frequency, can work in global GSM network. After the authorized phone controls the relay, it can send action text messages to the user.

*★★ Using SMS to set parameters remotely, add or delete users with SMS text commands, simple operation, convenient for using. You can query the current status of the device (relay status and GSM signal value) through SMS instructions.

*★★ Between 0-999 seconds, the relay closing time can be controlled arbitrarily, where 0 means: the relay will open 0.5 seconds after closing, and 999 means: the relay will remain closed until the permission number is dialed in. Support 200 groups of numbers, each group of numbers can be set to control the relay within a specified period of time.

*★★ Without call charges, the GSM GPRS relay switch rejects calls from authorized numbers and then performs an open / close operation on the first "ring". One relay output, the authorized number will be closed after the incoming call, and it will be automatically opened after the set time.

*★★ Metal case with IP30 protection. The metal housing is safely isolated from the system, which is especially suitable for industrial control field applications. Wide range of applications, suitable for garage access control, remote switching equipment, street lights, motors, inverters, remote pumps, LED signs, etc.