Hopcd Default Gsm Door Opener, Remote Automatic Relay Switch, Free Call Access Controller Rtu5034 Support 850/900/1800/1900Mhz
£22.27
Product Description
Adopt GSM / 2G network communication, without any distance limitation, it can be used anywhere. The quad-band GSM frequency 850/900/1800/1900 MHz, can work in the global GSM network. Without calling charges, the GSM GPRS relay switch rejects calls from authorized numbers and then performs an open/close operation on the first "ringtone". Wide operating voltage, support DC 9-24V power supply and anti-reverse protection design. Supports 200 groups of numbers, each number group can be configured to control the relay within a specified period of time. A relay output, the authorized number will be closed after the incoming call and it will be automatically opened after the set time. Add or delete users with SMS text commands, simple operation, convenient to use. Once the authorized phone controls the relay, it can send action text messages to the user. Between 0 and 999 seconds, the closing time of the relay 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 authorization number is dialed. You can query the current device state (relay status and GSM signal value) via SMS instructions., Manufacturer: Hopcd
Hopcd Default Gsm Door Opener, Remote Automatic Relay Switch, Free Call Access Controller Rtu5034 Support 850/900/1800/1900Mhz
Adopt GSM / 2G network communication, without any distance limitation, it can be used anywhere. The quad-band GSM frequency 850/900/1800/1900 MHz, can work in the global GSM network. Without calling charges, the GSM GPRS relay switch rejects calls from authorized numbers and then performs an open/close operation on the first "ringtone". Wide operating voltage, support DC 9-24V power supply and anti-reverse protection design. Supports 200 groups of numbers, each number group can be configured to control the relay within a specified period of time. A relay output, the authorized number will be closed after the incoming call and it will be automatically opened after the set time. Add or delete users with SMS text commands, simple operation, convenient to use. Once the authorized phone controls the relay, it can send action text messages to the user. Between 0 and 999 seconds, the closing time of the relay 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 authorization number is dialed. You can query the current device state (relay status and GSM signal value) via SMS instructions., Manufacturer: Hopcd
Delivery, Returns & Refunds
Delivery
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Refunds
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