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) with Internal resolution 0.1°C (0.1°F) and Accuracy (overall error) ± 0.25°C (0.41°F) typical (5 to 60°C)
Relative humidity:
Measurement range 0 to 100%RH with Internal resolution 0.1%RH and Accuracy (overall error) ± 1.85%RH typical (10 to 90%RH).