The Testo 623 comes with calibration protocol, batteries and attachment material.
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The Testo 623 temperature and humidity measuring instrument shows current and past temperature and humidity values as well as date and time, simultaneously in a large, clear display. This way, you have all important values constantly in view.
The displayed curve analysis offers optimum evaluation of the measurement results of the past 90 days. The Testo 623 is thus ideal for fast on-site checks of ambient conditions without complicated analysis on a PC.