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Lascar EL-USB-2 EasyLog USB Humidity Data Logger

EL-USB-2 Lascar Humidity and Temperature USB Logger

Lascar Data Recorder Measuring and Logging Relative Humidity and Temperature

Part Number: EL-USB-2

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  • Measure Temperature and Humidity Readings Using Internal Sensor

  • -35°C to 80°C and 0 to 100% RH Measurement Ranges

  • ±0.55°C and ±2.25% RH Accuracy

  • Powered by User-Replaceable 1/2 AA Lithium Battery with 3 Year Typical Battery Life

  • Red and Green LED Indicator Lights

  • Available in Special Discounted 5 Pack

Includes Protective Cap and 1/2 AA Lithium Battery. PC Compatible Software Available for Download.


All Calibration Orders Have a 5 to 7 Business Day Lead Time
1 Year Calibration Due Date Unless Otherwise Specified

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Lascar EL-USB-2 USB Humidity Data Logger Specifications

Data Storage Capacity 16,382 Temp and Humidity Readings (32,764 Total Readings/Samples)
Humidity Measurements Range: 0 to 100% RH
Repeatability: ±0.1%RH
Accuracy: ±2.25%RH Overall (20 to 80% RH)
Internal Resolution: 0.5 %RH
Long Term Stability: 0.5 % RH per Year
Temperature Measurements Range: -35°C to 80°C (-31°F to 176°F)
Repeatability: ±0.1°C (±0.2°F)
Accuracy: ±0.55°C (±1°F) Overall
Internal Resolution: ±0.5°C (±1°F) Overall
Dew Point Accuracy
(overall error)
(25°C, 40-100%RH)
±1.1°C (±2°F)
Note: This Specifies the Overall Error in the Calculated Dew Point, for Relative Humidity Measurements Between 40% and 100% RH at 25°C
Sampling Rate Once every 10 seconds to once every 12 hours
Operating Range -35°C to 80°C (-31°F to 176°F)
OS Compatibility Windows 10, 8 and 7 (32-bit and 64-Bit Versions)
Battery 1/2AA 3.6V Lithium Battery
Battery Life Up to 3 Years
NOTE: Depending on Sample Rate, Temperature and Use of Alarm LEDs
Standard Compliance IP67, RoHS
Weight 1.1 oz
Dimensions 103mm x 26.4mm (4.06" x 1.04")

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  • Answer:

    You can have this unit log data while still plugged into a computer however it will still be powered by the battery and not USB.  The built in USB plug is only used to plug it in for configuring the logger and downloading data.  Other than that you would typically remove it from the PC and place it wherever you wanted to record data.  There is no way to monitor the data in real time or receive alerts. 

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  • Answer:

    A NIST traceable certificate is available as an option however the loggers do not come with them. 

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  • Answer:

    You must add a calibration option for each logger you purchase.  If you choose the calibration option and change the quantity ordered to "2" it will add calibration for both loggers. 

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