Lascar EL-USB-1-PRO

  • -40 to +125°C (-40 to +257°F) measurement range
  • Stainless Steel (316 grade) case
  • Environmental protection to IP67
  • USB interface for set-up and data download via PC (not Mac compatible)
  • Immediate and delayed start logging
  • Supplied with replaceable high capacity lithium battery and Windows control software



The Lascar EL-USB-1-PRO USB Temperature Data Logger measures more than 32,000 readings over a -40 to +125°C (-40 to +257°­­F) range. Its robust stainless steel assembly provides protection from corrosion, impact and water ingress to IP67/NEMA 4X.

Easily set up the logger and view downloaded data by plugging the unit into a PC’s USB port and using the free EasyLog software provided. Data can then be graphed, printed and exported to other applications for detailed analysis. Supplied with a specialist high temperature ⅔ AA battery.

The EL-USB-1-PRO is suitable for a wide variety of industrial applications. These include:

  • Transportation
  • Food & Drink
  • Building and Site Monitoring


Specifications Minimum Typical Maximum Unit
Measurement range -40 (-40) +125 (+257) °C (°F)
Accuracy (overall error) ±0.5 (±0.1) † ±1 (±2) °C (°F)
Internal resolution 0.1 °C (°F)
Logging rate every 1 s every 12 hr
Operating temperature range -40 (-40) +125 (+257) °C (°F)
2/3AA 3.6V High Temperature Lithium Battery Life 1* 2** 3 Year
Dimensions 110 x 18mm (4.33 x 0.70”)

† Between 0°C and 40°C
* 10 second logging rate @ -20°C
** 10 second logging rate @ +80°C


The core of Lascar’s data logging solution is the free software supplied with each data logger. Using a wizard format to guide the user through setup of the data logger and subsequent download of collected data, the software puts the ‘easy’ into EasyLog. Compatible with 32-bit and 64-bit versions of Windows 7, 8 and 10. (not compatible with Mac or Linux).

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