• Measuring ranges:
    • RH: 10 to 95%
    • Temp: -4 to 120°F (-20 to 50°C)
    • Pressure: 300 to 1300 hPa
    • CO2: 0 to 5000 ppm
  • Data storage: 16 MB, 3,200,000 measured values
  • Plastic ABS housing
  • IP40 protection class
  • USB and LAN (ethernet) interface options


The E+E HUMLOG20 Data Logger facilitates exact and professional recordings for climatic measurements of humidity, temperature, air pressure and CO2 concentration. The long battery life and large memory allow for continuous data recording over long periods of time. The configuration of the data logger and the evaluation of the measurement data are simple and straightforward using SmartGraph3 software, which is included in the scope of supply. The built-in Ethernet interface makes the HUMLOG20 Network capable, and ensures maximum reliability in data transmission. For various requirements in the application, the four models THI, THIP, TCO and E are available. The Model E offers the highest flexibility with analog and digital interface for external sensors.

Typical applications for the HUMLOG 20 include:

  • Museums and exhibition spaces
  • Clean rooms
  • Warehouses
  • Electronic-data-processing centres
  • Calibration laboratories


This product can be used in the following applications: