TESTO 174 User Manual

3 Specifications
22
3 Specifications
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3.1. Use
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The testo 174 data loggers are used for storing and reading out
individual readings and series of measurements.
Readings are measured and stored with the testo 174 and
transmitted to the PC via the interface, where they can be read out
and evaluated using the testo ComSoft software. The data logger
can also be programmed individually via the software.
Examples of applications
testo 174T is ideally suited for temperature measurement in in
refrigerators, freezers, cold rooms and cold shelves.
testo 174H monitors the climatic conditions, e.g. in warehouses,
offices and in the manufacturing sector.
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3.2. Technical data
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testo 174T
Characteristic Values
Probe type Internal NTC temperature sensor
Measuring range -30 to +70 °C
Accuracy ± 0.5 °C (-30 to +70 °C)
Resolution 0.1 °C
Operating
temperature
-30 to +70 °C
Storage
temperature
-40 to +70 °C
Battery type 2 x 3 V button cell (2 x CR 2032 lithium)
Life 500 days (15 min measuring cycle, +25 °C)
Protection class IP65
Meas. cycle 1 min - 24 h (can be selected)
Memory 16,000 readings

TESTO 174 Specifications

General

Temperature Range	-20 to +70 °C
Humidity Measuring Range	0 to 100 %RH
Memory Capacity	16, 000 readings
Measuring Rate	1 min to 24 h
Temperature Accuracy	±0.5 °C
Humidity Accuracy	±3 %RH