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Lascar Temperature & Humidity Data Logger with Display – EL-SIE-2


The Lascar EL-SIE-2 kit is designed to monitor ambient temperature and humidity in a large range of applications and is suitable for monitoring environments such as residential spaces, offices, warehousing, building management, logistics, clean rooms, and greenhouses.

Products in the EL-SIE range are simple to set up and easy to use. No software is required other than an internet browser (does not require an internet connection). Use the supplied USB-A to USB-C cable to connect to your computer under any operating system (MAC, PC, etc).

Set a logging interval between 10 seconds and 24 hours, with immediate, delayed, triggered or push-to-start logging. Alarms are fully user configurable, with functionality including cumulative alarms, pre-alarms, a delay before alarm triggering, and an alarm hold option, which continues showing the alarm condition even if the reading returns to an acceptable level.

The LCD display shows current, maximum and minimum readings, and three colored LEDs indicate device status at a glance. Once logging is complete, re-connect to your computer and use your browser to view, analyze and save your data. You can also choose to upload your data to an Easy Log Cloud account, making the data accessible online for powerful graphing, analysis and report generation.


  • Includes an EL-SIE-2 USB data logger, a wall mounting bracket, 2 × 1.5V AAA batteries, and a USB A to USB C cable (CALIBRATION CERTIFICATE sold separately)
  • Measures ambient temperature between -18 to +55 °C (-0.4 to +131 °F)
  • Measures relative humidity 0 to 100%
  • Dew point calculation
  • Records up to 1,000,000 data points to internal memory
  • Export data to .csv file or upload to EasyLog Cloud
  • Measurement accuracy of ±0.3°C (±0.54°F) typical
  • Access live temperature data using any Browser software
  • Status and alarm indicators
  • IPX4 rating – protected from splashing water, no matter the direction
  • Battery life more than 1 year (at 25°C with 10 minute logging rate)
  • Logging rates from 1 sample every 10 seconds to 1 sample every 24 hours


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EL-SIE-2Temperature & Humidity Data Logger with Display
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