The Testo 608 series thermo hygrometers provide continuous monitoring of humidity, temperature, and dew point. Both the 608-H1 and 608-H2 models feature a large, easy-to-read display, flexible mounting options (table or wall), max/min value display, and a battery monitor. The long-term stable sensor ensures accurate measurements even after years of use.

The 608-H1 measures humidity from 10 to 95% RH (±3% accuracy) and temperature from 0 to 50°C (±0.5°C). Dew point range is -20 to 50°C. The 608-H2 offers extended ranges: humidity 2 to 98% RH (±2% accuracy), temperature -10 to 70°C (±0.5°C), and dew point -40 to 70°C. The H2 model also includes a precise LED alarm that reliably reports humidity and temperature limit violations.

Applications include garden centers, storerooms, clean rooms, museums, laboratories, and other environments where consistent climate monitoring is essential. The humidity sensor is unaffected by condensation, ensuring reliable operation even in high-humidity conditions.