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It is a new industrial gsm modem which developed by USR IOT in 2016
Support various VPN remote connection
RS232 Serial Server to Ethernet :USR-N540
Multiple triggering conditions and actions
ensure super reliability
RS485 Modbus CO2 Sensor for Carbon Dioxide Detection Signal Output:Digital Signal: RS485 (Modbus) It is a new industrialThis sensor is used to detect the concentration of carbon dioxide in the environment. It adopts imported high performance carbon dioxide sensor detection devices, with sensitive response, high measurement accuracy, good stability and repeatability. It is widely used for indoor and outdoor environmental air quality monitoring, agricultural greenhouses, cultivation of growing plants such as flowers and other occasions that require CO2 monitoring.