Temperature and Humidity USB Data Logger with LCD Display

  • LCD display shows high/low and last readings
  • Humidity/Temp USB data logger
  • Calculated dew point
  • Free configuration software
  • User-selectable alarm thresholds
  • Calibration certificate available

Product Description


Temperature and Humidity USB Data Logger with LCD Display

This standalone data logger measures and stores up to 16,379 relative humidity and 16,379 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 logger and view downloaded data by plugging the module into a PC’s USB port and using the supplied software. 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 high contrast LCD can show a variety of temperature and humidity information. At the touch of a button, the user can cycle between the current temperature and humidity, along with the maximum and minimum stored values for temperature and humidity. 
The data logger is supplied complete with a long-life lithium battery, which can typically allow logging for up to 1 year. 

The data logger configuration software is compatible with Windows 2000/XP/Vista/7.
Download the latest version of the configuration and graphing software from Lascar’s website.







Relative Humidity

Measurement range





Repeatability (short term)




Accuracy (overall error)




Internal resolution




Long term stability





Measurement range

-35 (-31)


+80 (+176)

°C (°F)



±0.1 (±0.2)


Accuracy (overall error)


±0.5 (±1)

±2 (±4)

Internal resolution


0.5 (1)


Dew Point

Accuracy (overall error) (25°C, 40-100%RH)


±1.1 (±2)**


°C (°F)

Logging rate

every 10s


every 12hr

Operating temperature range †

-35 (-31)


+80 (+176)

°C (°F)

1/2AA 3.6V Lithium Battery Life ***


1 year



* This specifies the overall error in the logged readings, for relative humidity measurements between 20 and 80%RH
** This specifies the overall error in the calculated dew point, for realtive humidity measurements between 40 and 100%RH at 25°C
*** Depending on sample rate, ambient temperatures and use of alarm LEDs 
† At temperatures below -20ºC (-4ºF) the LCD will exhibit slower response times of approximately 10 seconds

The EL-USB-2-LCD 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

Lascar’s calibration certificate is traceable to UKAS standards. Customers in the UK, EU, Rest-of-world will receive UKAS traceable certificates.

A calibration certificate is not supplied as standard with a data logger. It is at extra charge.

Please note that a calibration certificate can only be provided with a data logger at the time of original purchase.

Set up and data download of Lascar’s  EasyLog data loggers is enabled by Lascar’s  EL-WIN-USB software. It is compatible with 32-bit and 64-bit versions of Windows XP, Vista, 7 & 8.

Download the latest version of the software as instructed in guide sheet supplied along with the item. Please note, the software is not compatible with Mac or Linux.

Download brochure.