GSM home alarm system, Use GSM card,only call the users when emergency,no sms.
GSM home alarm system, Use GSM card,only call the users when emergency,no sms. |
S272 is industrial 4G RTU that supports SMS and MQTT protocol. It is compatible with Huawei cloud, Alibaba cloud and other clould platform including customized cloud platform. It has one RS485, eight DI, four Relay output, six AI and one temperature and humidity acquisition ...
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S281 LoRa gateway is data acquisition device based on Lora, 4G and Ethernet communication technologies. One LoRa gateway can collect data from 50 wireless Lora nodes, and the communication distance can reach 2000 meters. It is an optimal solution for data collection within the ...
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Fingerprint, Password, RF Card Unlocking Up to 300 Different Users Zinc Alloy Materia 60-68mm Mortise Lock Body Mechanical Keys for Emergency Access Semiconductor Fingerprint Sensor Voice Indicator Door Bell Function Internal Safe Handle DoorBell function Don\'t need to worry ...
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