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    USB Temperature/Humidity Data LoggerUSB Temperature/Humidity Data Logger

USB Temperature/Humidity Data Logger

It measures and stores relative humidity and temperature readings

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This USB Temperature/Humidity Data Logger measures and stores up to 16,382 relative humidity and 16,382 temperature readings over 0 to 100%RH and -35 to +80°C (-31 to +176°F) measurement ranges.

The user can easily set up the logging rate and start time, and download the stored data by plugging the module straight into a PCs USB port and running the purpose designed software under Windows 2000, XP, Vista and 7. Relative humidity, temperature and dew point (the temperature at which water vapour present in the air begins to condense) data can then be graphed, printed and exported to other applications.

The data logger is supplied complete with a long-life lithium battery, which can typically allow logging for a year. Status indication is via flashing red and green LEDs. The logger is protected against ingress from water and dust to IP67 standard when the plastic cap and seal are fitted.


  • Humidity/Temp USB data logger
  • Configuration software
  • User-selectable alarm thresholds
  • LEDs indicate logger status
  • IP67 protection
  • Calibration certificate available


The EL-USB-2 is suitable for a wide variety of applications, these include:

  • Pharmaceutical fridge monitoring
  • Environmental and weather monitoring
  • Agricultural and livestock
  • Food & drink
  • Building & site monitoring
  • HVAC/R
Relative HumidityMeasurement range0100%RH
Repeatability (short term)±0.1
Accuracy (overall error)±3**5
Internal resolution0.5
Long term stability0.5
TemperatureMeasurement range-35 (-31)+80 (+176)°C (°F)
Repeatability±0.1 (±0.2)
Accuracy (overall error)±0.5 (±1)±2 (±4)
Internal resolution0.5 (1)
Dew PointAccuracy (overall error) (25°C, 40-100%RH)±1.1 (±2)***°C (°F)
Logging rateevery 10severy 12hr-
Operating temperature range-35 (-31)+80 (+176)°C (°F)