This standalone data logger measures more than 16,000 readings over a -35 to +80°C (-31 to +176°­­F) and 0 to 100% humidity (RH) range. 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 ½ AA battery and wall mount clip.
PLEASE NOTE: You can add up to TWO SPARE BATTERIES for every data logger ordered. 
 
Specifications
EB-USB-2
 
Temperature Measurement range
-35°C to 80°C (-31°F to 176°F)
Internal resolution
0.5°C (1°F)
Accuracy (overall error)
0.45°C (1.04°F) typical (5 to 60°C)
Long term stability
<0.02°C (0.04°F) / year
Relative Humidity Measurement range
0 to 100%RH
Internal resolution
0.5%RH
Accuracy (overall error)
3%RH (20 to 80%RH)
Long term stability
<0.25%RH / year
Logging Rate
User selectable between 10 seconds and 12 hours
Battery Life
3 Years
Calibration Certificate
Available Separately
 
EL-USB-2-LCD
 
Temperature Measurement range
-35°C to 80°C (-31°F to 176°F)
Internal resolution
0.5°C (1°F)
Accuracy (overall error)
0.55°C (1.04°F) typical (5 to 60°C)
Long term stability
<0.02°C (0.04°F) / year
Relative Humidity Measurement range
0 to 100%RH
Internal resolution
0.5%RH
Accuracy (overall error)
2.25%RH typical (20 to 80%RH)
Long term stability
<0.25%RH / year
Logging Rate
User selectable between 10 seconds and 12 hours
Battery Life
2 Years
Calibration Certificate
Available Separately
 
EL-USB-2-LCD+
 
Temperature:
 
 Measurement range
-35°C to 80°C (-31°F to 176°F)
Internal resolution
0.5°C (1°F)
Accuracy (overall error)
0.45°C (0.86°F) typical (5 to 60°C)
Long term stability
<0.02°C (0.04°F) / year
Relative Humidity:
 
Measurement range
0 to 100%RH
Internal resolution
0.5%RH
Accuracy (overall error)
2.05%RH typical (10 to 90%RH)
Long term stability
<0.25%RH / year
Logging Rate
User selectable between 10 seconds and 12 hours
Battery Life
2 Years
Calibration Certificate
Available Separately