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CO2/Temperature/Humidity/Dew Point Data Logger
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Model: DL-302
  • Simultaneous Display for CO2, Temperature, Humidity and Dew Point
  • 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 450,000 CO2, Temperature, Humidity and Dew Point 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
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, humidity and dew point data. The data storage memory can store up to 450,000 CO2, temperature, humidity and dew point 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.
  • Transportation of Food or Pharmaceuticals
  • Food and Beverage Industry (HACCP)
  • Blood Stations and Pharmacies
  • Building and Energy Management
  • Warehouse Management
  • Museums, Archives and Galleries
Models DL-302
Typee CO2, Temperature, Relative Humidity, Dew Point
CO2 Measurement
Range 0 to 9999 ppm
Resolution 1 ppm
Accuracy ±30 ppm ±3% of measured value
Response Time 20 sec
Warm-up Time 60 sec
Temperature Measurement
Range -10 to +50°C
Resolution 0.1°C
Accuracy ±0.6°C
Relative Humidity Measurement
Range 0 to 100% RH
Resolution 0.1% RH
Accuracy ±5% RH
CO2 Alarm Yes
Real Time Clock Yes
Data Logger Yes, 450,000 Records
Relay Output Form A×1, SPST
30 VDC @ 16 A or 250 VAC @ 16 A
Interface RS-485/Ethernet/PoE
Main Machine Interface
LCD 2.8 TFT (Resolution 240 x 320 x 16), Defective Pixels <= 3
Backlight Life 20,000 hours
Brightness 160 cd/m2
Touch Panel Yes
Powered from Terminal Block or PoE +12 to +48 VDC or IEEE 802.3af, Class 1 (48 V)
Power Consumption 1.2 W
Dimensions (L x W x H) 114 mm x 106 mm x 56 mm
Installation Desktop, DIN-Rail or Wall Mounting
Operating Temperature 0 ~ +50°C
Storage Temperature -30 ~ +75°C
Humidity 10 ~ 90% RH, Non-condensing
Dew Point
Range Calculated using temperature and relative humidity
Resolution 0.1°C
DL-302 CR Remote CO2/Temperature/Humidity/Dew Point Data Logger with Safety Alarm (RoHS)

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