These Testo 174 H mini data loggers measure temperature and humidity and are ideal for commissioning, inspection, maintenance of HVAC/R systems, fault diagnosis, and indoor climate monitoring. The models have a measuring range from -20°C to +70°C and an NYC sensor. They can store up to 16,000 values and have an automatic backup feature that prevents data from being lost during battery changes.
The ComSoft Basic software, included with the USB-C version (174 H), provides a simple, intuitive setup process with easy data analysis, including exporting to Excel and generating PDF reports.
The Bluetooth version (174 H BT) connects to the Testo Smart App on iOS and Android platforms. View measurements, generate PDF reports, add photos and comments, and email the results directly from up to 30 metres away.
174 H | 174 H BT | |
---|---|---|
Sensor Type | NTC | |
Measuring Range | -4 to 158 °F (-20 to +70 °C) | |
Accuracy ±1 Digit | ±0.9 °F (-4 to 158 °F) ±0.5 °C (-20 to +70 °C) |
|
Resolution | 0.1 °F / °C | |
Sensor Type | Testo humidity sensor, capacitive | |
Measuring Range | 0 to 100 %RH* | |
Accuracy | ±3 %RH (2 to 98 %RH) ±0.03 %RH/K |
|
Resolution | 0.1 %RH | |
Channels | 2 x internal | |
Battery Type | 2 Lithium batteries (CR2032) | |
Battery Life | 1 year (15 min. measuring cycle, 77 °F (+25 °C)) | |
Operating Temperature | -4 to 158 °F (-20 to +70 °C) | |
Storage Temperature | -40 to 158 °F (-40 to +70 °C) | |
Dimensions | 2.4 X 1.5 X 0.7 in (60 X 38 X 18.5 mm) | |
Weight | 1.2 oz (35 g) | |
Protection Class | IP20 | |
Measuring Cycle | 1 min to 24 h | |
Memory | 16,000 readings | |
Connection/connector | USB 2.0 | Bluetooth |
Software | Testo ComSoft Basic Testo ComSoft Professional |
Testo Smart App |
Logger configuration | ✔ | |
Measurement Data Evaluation | ✔ | |
Reporting | ✔ | ✔ (only possible after registration) |
Measurement Data Export | PDF / XLS / HTML / CSV | PDF / CSV / JSN |
* Not for condensing atmospheres. For continuous application in high humidity (>80 %RH at ≤86 °F (30 °C) for >12 h, >60 %RH at >86 °F (30 °C) for >12 h). |