Professional Temperature and Humidity Logger Testo 174 H
The Testo 174 H temperature and humidity logger is designed for
environmental monitoring and critical condition recording in industrial and healthcare settings, especially in the food sector. Its memory of up to 16,000 readings and data protection via non-volatile memory ensures complete reliability even when the batteries are replaced. This data logger combines advanced accuracy with ease of use for measurements in refrigerators, cold rooms, and humidity-controlled areas.
2 Available Options
Testo 174 H with USB-C cable and PC software
- Testo 174 H temperature and humidity data logger, 2 channels, includes wall mount, batteries (2 x CR2032), and test report
- Easy data download via USB-C cable
- Software for programming, data analysis, exporting to Excel, and generating PDF reports
- Temperature measuring range: -30 °C to +70 °C
- High accuracy in temperature and humidity within the range -20 °C to +70 °C
- Non-volatile memory for 16,000 readings, even when changing batteries
- Includes free ComSoft Basic software
Testo 174 H BT with Bluetooth and App Connectivity
- Testo 174 H BT temperature and humidity data logger, 2 channels, includes wall mount, batteries (2 x CR2032), and test report
- Intuitive setup and analysis via the Testo Smart App
- Bluetooth connectivity with up to 30 meters range
- Temperature measuring range: -30 °C to +70 °C
- High accuracy in temperature and humidity within the range -20 °C to +70 °C
- Non-volatile memory for 16,000 readings
- Data export to Excel and creation of PDF reports with photos and comments
Technical Data of Temperature and Humidity Data Loggers
| Sensor type: NTC |
testo 174 H |
testo 174 H BT |
| Measuring range |
-20 to +70 °C |
| Accuracy ±1 digit |
±0.5 °C (-20 to +70 °C) |
| Resolution |
0.1 °C |
| Sensor type: Testo humidity sensor, capacitive |
testo 174 H |
testo 174 H BT |
| Measuring range |
0 to 100 %RH* |
| Accuracy ±1 digit |
±3 %RH (2 to 98 %RH); ±0.03 %RH/K |
| Resolution |
0.1 %RH |
* Not for atmospheres with condensation. For continuous use in high humidity
(>80 %RH at ≤30 °C for >12 h, >60 %RH at >30 °C for >12 h), please contact customer support.
| Sensor type |
testo 174 H |
testo 174 H BT |
| Channels |
2 internal channels |
| Battery type |
2 CR2032 lithium batteries |
| Battery life |
1 year (at a measuring interval of 15 min, at +25 °C) |
| Operating temperature |
-20 to +70 °C |
| Storage temperature |
-40 to +70 °C |
| Dimensions |
60 x 38 x 18.5 mm |
| Weight |
35 g |
| Certifications |
HACCP |
| Protection class |
IP20 |
| Measuring interval |
1 min to 24 h |
| Memory |
16,000 readings |
| Connectivity |
USB 2.0 |
Bluetooth |
| Software |
testo ComSoft Basic; testo ComSoft Professional |
testo Smart App |
| Logger configuration |
Yes |
Yes |
| Data analysis |
Yes |
Yes |
| Report generation |
Yes |
Yes (only after creating an account in the App) |
| Data export |
PDF / XLS / HTML / CSV |
PDF / CSV / JSON |
Accessories
ComSoft Basic (free download)
PC software for programming and reviewing data from the data loggers, displaying values in tables or charts, and exporting information.
Testo Smart App (free download)
Turns your smartphone or tablet into the display for the Testo 174 H BT. Control, visualization, and data export via Bluetooth®, report creation with photos and comments. Compatible with iOS and Android.
ComSoft Professional
Advanced version of ComSoft Basic with additional functions such as combining data from multiple loggers and creating customized reports.
Other Accessories
- Lithium CR2032 battery (each data logger uses 2 batteries)
- ISO temperature calibration certificate; calibration points: -18 °C, 0 °C, +40 °C per channel/device
- ISO humidity calibration certificate; calibration points: 11.3 %RH and 75.3 %RH at +25 °C per channel/device