testo 445 climate measuring instrument

Ventilation and air conditioning systems are used more and more frequently to ensure user independent fresh air supply and thermal comfort in buildings. The testo 445 climate measuring instrument helps you check the system is functioning properly and operating efficiently. This is because the measuring instrument can determine all the relevant measurement parameters for you.

testo 445 climate measuring instrument: an overview of the advantages

The testo 445 climate measuring instrument has two inputs for connecting external probes (which can be ordered separately). At Testo, you have a large selection of suitable probes for the testo 445 climate measuring instrument. Depending on which probe you decide on, you can determine the following parameters:

Air velocity (in ventilation ducts, at duct outlets and on extractors)
Volume flow
Temperature
Relative air humidity
Dew point
Absolute humidity
Degree of humidity
Enthalpy
Pressure
CO in indoor air

Further practical features of the climate measuring instrument: its internal memory records up to 3,000 readings. The automatic allocation of the duct cross-section is also particularly useful. This means you can save the measurement data so that it is linked to the measuring location (up to 99 measuring locations). The mean value, the last measured value and the min./max. values can be displayed simply by pressing a key.

As optional accessories for the climate measuring instrument, we recommend you get the testo fast printer to print data out directly at the measuring location and the ComSoft software for convenient data analysis on the PC.

General technical data	Weight 255 g
Dimensions 215 x 68 x 47 mm
Operating temperature 0 to +50 °C
Product-/housing material ABS
Battery type 9V block battery, 6F22
Battery life 45 h
Display type LCD (Liquid Crystal Display)
Display size 4 lines
Data transfer RS232
Memory 3,000 measuring values
Storage temperature -20 to +70 °C

Weight

255 g

Dimensions

215 x 68 x 47 mm

Operating temperature

0 to +50 °C

Product-/housing material

ABS

Battery type

9V block battery, 6F22

Battery life

45 h

Display type

LCD (Liquid Crystal Display)

Display size

4 lines

Data transfer

RS232

Memory

3,000 measuring values

Storage temperature

-20 to +70 °C

Temperature - NTC	Measuring range -50 to +150 °C
Accuracy ±0.4 °C (-50 to -25.1 °C) ±0.4 °C (+75 to +99.9 °C) ±0.2 °C (-25 to +74.9 °C) ±0.5 % of mv (+100 to +150 °C)
Resolution 0.1 °C (-50 to +150 °C)

Measuring range

-50 to +150 °C

Accuracy

±0.4 °C (-50 to -25.1 °C)

±0.4 °C (+75 to +99.9 °C)

±0.2 °C (-25 to +74.9 °C)

±0.5 % of mv (+100 to +150 °C)

Resolution

0.1 °C (-50 to +150 °C)