This 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 EasyLog USB software enables quick configuration and data download via the USB port. Supplied with two batteries, mounting clip and micro USB cable.

Measurement Range: -30°C to 80°C (-22°F to 176°F)
Internal Resolution: 0.1°C (0.1°F)
Accuracy (overall error): ± 0.35°C (0.59°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): 2.05%RH typical (20 to 80%RH)
Long Time Stability: -0.25%RH / year
Logging Rate: User selectable between 10 seconds and 1 hour