You can keep a close eye on indoor air quality with the testo 445 climate measuring instrument: the allrounder can measure up to 6 parameters (with the appropriate probe), which can help you make a professional assessment of indoor air quality. The climate measuring instrument therefore supports you in adjusting and checking ventilation and air conditioning systems.

The testo 645 humidity/temperature measuring instrument automatically indicates the measurement parameters of relative humidity, absolute humidity, dew point, degree of humidity, enthalpy and temperature at the touch of a button.

Transport case (plastic) for measuring instrument, probes and accessories

Transport case (plastic) for measuring instrument, probes an...

HVAC Contractors

footer

imprint

privacy-policy

header

header-2025

Choose Your Country

contact

logins

testo-saveris-footer

testo-saveris-header