Product

  SZ3990 using the standard ZIGBEE Wireless Communication Interface,easy access to PLC，DCS and other instruments or systems for monitoring carbon dioxide,temperature,humidity,atmospheric pressure state quantities.The internal use of high-precision sensing core and related devices to ensure high reliability and excellent long-term stability,can be customized RS232,RS485,CAN,4-20mA,DC0~5V\10V,ZIGBEE,Lora,WIFI,GPRS and other output methods.

Technical Parameters

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Technical parameter	Parameter value
Brand	SONBEST
CO2 range	0~5000ppm
CO2 accuracy	±100ppm
Temperature measuring range	-30℃~80℃
Temperature measuring accuracy	±0.5℃ @25℃
Support sensor	SHT20
Channels	3
Input bus	IIC
Humidity measuring range	0~100%RH
Humidity accuracy	±3%RH @25℃
Atmospheric pressure range	30~110kpa
Atmospheric pressure accuracy	±0.5%
Communication Interface	ZIGBEE
Radio frequency	2.4G ISM
Network Type	Star network
Network capacity	65535
Power	DC9~24V 1A
Dimensions	Φ28.5mm×127mm

Wiring instructions

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    Any incorrect wiring can cause irreversible damage to the product. Please carefully wire the cable as follows in the case of power failure, and then connect the cable to confirm the correctness and then use it again.

ID	Core color	Identification	Note
1	Red	V+	Batter V+
2	Green	V-	Batter V-

Product Pictures

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