Rotronic HL-20D HygroLog Temperature And Humidity Data Logger 

The compact data logger for humidity and temperature measurement offers high precision and reliability at a reasonable price. The HL-20 series is easy to use and deployable in a wide range of applications. Thanks to its integrated batteries, the HL-20 works completely independently and offers its users maximum flexibility.

Applications

Warehouses, factory halls, museums, office buildings, clean rooms, shipping, libraries, test facilities

Features

• Highest accuracy at 0.8 %RH and 0.3 ˚C

• Outstanding long term stability

• 20,000 data point memory with date & time stamps

• Programmable alarm limits

• Programmable recording intervals

• Psychrometric calculations of dew and frost point values available

• FDA 21 CFR Part 11 / GAMP 4 compliant

• UART interface

• Long battery life