Testo 645 Digital Thermohygrometer

Technical specifications:

The Testo 645 Digital Thermohygrometer is characterized by the fact that it is equipped with channels to allow connecting up to 2 plug-in probes: In one of the channels a probe can be connected for the measurement of temperature type K / J / S and NTC, while in the second it is They can connect combined probes to perform temperature and humidity measurement or Pt 100 temperature probes,

This instrument is very useful in monitoring temperature and humidity values in production rooms, sales showcases, storage spaces, server rooms, archives, cold stores, museums and containers.


Among other features of the Testo 645 Digital Thermohygrometer, the following can be mentioned:

- It has a backlit 4-line LCD screen, which allows displaying the measured values, even in low visibility conditions,

- It allows to automatically display the values of temperature, relative humidity, absolute humidity, dew point, dew point under pressure, humidity degree and enthalpy.

- It is ideal for locating mold growth in homes and other buildings,

- It has the Hold function, which allows displaying the last measured value,

- It allows to visualize the minimum, maximum and average values,

- You can store in its internal memory, up to 3,000 readings,

- It has dimensions of 215 mm long x 68 mm wide x 47 mm high,

- Its weight is 255 grams,

- Can be easily operated with one hand,

- It uses square 9 volt batteries, which give it an autonomy of up to 45 hours,

- It allows, through an optional Testo printer, to print the measured data directly in the place where you are working,

- With the optional software, it is possible to carry out on the computer, the subsequent analysis of the measurements made,

- It has a humidity measurement range that goes from 0 to +100% RH, with an accuracy up to ± 1% RH,

- The order includes, in addition to Thermohygrometer Testo 645 and 1 square battery of 9 volts.