this high accuracy usb data logger records over 250,000 temperature and relative humidity readings in one or more sessions for up to 1 year. it has user-programmable audible alarm thresholds with highly visible confidence/alarm leds. inside the rugged ip67 / nema 4x case, buttons for start, stop and restart and a graphic lcd with on-screen menus provide real-time analysis of data as a summary or as a graph. the el-win-usb software enables quick configuration and data download via the usb port.supplied with two batteries, usb cover, mounting clip and micro usb cable.

temperature:
measurement range
-30°c to 80°c (-22°f to 176°f)
internal resolution
0.1°c (0.1°f)
accuracy (overall error)
± 0.25°c (0.41°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
0.1%rh
accuracy (overall error)
± 1.85%rh typical (10 to 90%rh)
long term stability
<0.25%rh / year
logging rate
user selectable between 10 seconds and 1 hour

theel-gfx-2+is suitable for a wide variety of applications. these include:
· building and site monitoring
· housing & business premises
· outside environmental data