Environmental Monitoring & Control

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CO2/Temperature/Humidity Data Logger

The DL-302 is a data logger module designed to accurately measure CO2, temperature and humidity. It contains RS-485, Ethernet and PoE communication interfaces together with a 2.8" LCD Touch Screen display that can be used to display a variety of CO2, temperature and humidity measurements. The data storage memory can store up to 600,000 CO2, temperature and humidity records. The Data Logger Utility is included to allow retrieval and display of data in a powerful chart format that can be exported to Excel.
See the Product PDF Datasheet for Full Information


  • Triple Function Simultaneous Display for CO2, Temperature and Humidity
  • NDIR Technology improves CO2 Measurement Accuracy and Stability
  • CO2 Measurement Range: 0 to 9999 ppm
  • 2.8" LCD Touch Screen
  • RTC (Real Time Clock)
  • Data Logger can store up to 600,000 CO2, Temperature and Humidity Records
  • RS-485/Ethernet/PoE Communication Interface
  • DCON, Modbus RTU, Modbus TCP Protocols
  • Relay Output for CO2 Alarm Output
  • Desktop, DIN-Rail or Wall Mounting
  • Windows Software Included
  • Built-in Web Server

Ordering Information

See the Product PDF Datasheet

LAN PortModbus RTU ProtocolModbus TCP ProtocolPoE PortRS485 Serial Port0C to 50C Operating12~48VDC Power

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