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SZ3990 is a collaboration of ZIGBEE wireless carbon dioxide, temperature, humidity sensor. SZ3990 is for the process of agricultural production environmental monitoring dedicated sensor. Internal core sensors are imported devices. Instruments capable of continuously monitoring the concentration of carbon dioxide gas, light intensity and ambient temperature and humidity. Each parameter value is converted to a MODBUS-RTU standard. ZIGBEE wireless electrical signal transmission to the associated equipment. This product is an upgraded version SM3390B. It has higher waterproof performance and can suitable for greenhouses and other environments.
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