Get a Fast Quote
🛠️ Need the Right HVAC Tool for the Job?
Whether you're quoting a bulk order or chasing hard-to-find tools, we’re here to help.
Get a fast, personalised quote—no pressure, no spam!
Fill out the form below and we’ll get back to you ASAP.
📩 Request a Quote
Description
The Testo 174 H BT Mini Data Logger with Bluetooth connectivity provides a reliable and convenient solution for monitoring both temperature and humidity. Ideal for applications ranging from climate control in buildings to ensuring optimal storage conditions for sensitive goods, this compact logger captures and transmits data with precision.
Operating within a broad measuring range of -20 °C to +70 °C, the 174 H BT seamlessly integrates with the free Testo Smart App on your smartphone or tablet (iOS/Android). This allows for effortless real-time monitoring, data analysis, and the creation of customisable reports, which can be shared as PDF or Excel files.
With a substantial memory capacity of 16,000 measured values per channel and automatic data backup, the 174 H BT guarantees continuous and secure data logging, even during battery changes. Its durable sensors are designed for long-term use, making it an indispensable tool for maintaining consistent environmental conditions.
Why It Matters
Accurate and continuous monitoring of temperature and humidity is critical across various industries, from preserving food quality and pharmaceutical integrity to protecting valuable archives and ensuring occupant comfort in residential and commercial spaces. The Testo 174 H BT provides the precision and reliability needed to prevent spoilage, mitigate mould risks, and comply with essential environmental standards, safeguarding assets and ensuring optimal operational conditions.
What's Included
- Testo 174 H BT Mini Temperature and Humidity Data Logger
- Wall bracket
- 2 x CR2032 lithium batteries
- Test report
Features & Benefits
- Free Testo Smart App: Generate, customise, and export reports (PDF/Excel) effortlessly via a user-friendly interface.
- Bluetooth Connectivity: Conduct simple data analysis directly at the measuring point from up to 30 metres away, enhancing workflow efficiency.
- Accurate Measurements: Precisely monitors indoor humidity and temperature from -20 °C to +70 °C (-4 °F to 158 °F).
- Automatic Data Backup: Ensures reliable data recording even if the battery is depleted or during replacement, protecting valuable information.
- High Memory Capacity: Stores up to 16,000 measured values per channel, allowing for comprehensive long-term monitoring.
- Compact & Robust Design: Ideal for discreet placement and reliable operation in various environments.
Applications
- Monitoring storage conditions for temperature and humidity-sensitive goods like food, pharmaceuticals, and archived documents.
- Continuous climate control in residential, commercial, and industrial buildings.
- Verifying environmental parameters in laboratories, museums, and cold storage facilities.
- Identifying potential mould growth risks in properties due to excessive humidity.
Tradie Pro Tip
For optimal accuracy, always ensure your data logger is positioned away from direct sunlight, drafts, or strong heat sources. Calibrate regularly and keep it clear of obstructions to get the most representative readings of your environment.
Technical Specifications
| Specification | Value |
|---|---|
| Temperature - NTC Measuring range | -20 to +70 °C / -4° to 158 °F |
| Temperature - NTC Accuracy | ±0.5 °C (-20 to +70 °C) / ±0.9 °F (-4° to 158 °F) |
| Temperature - NTC Resolution | 0.1 °C / 0.1 °F |
| Humidity - Capacitive Measuring range | 0 to 100 %rH* |
| Humidity - Capacitive Accuracy | ±3 %rH (2 to 98 %rH), ±0.03 %rF/K |
| Humidity - Capacitive Resolution | 0.1 %rH |
| General Technical Data | |
| Weight | 35 g / 1.24 oz. |
| Dimensions | 60 x 38 x 18.5 mm / 2 x 1 x 0.7 in. |
| Operating temperature | -20 to +70 °C / -4° to 158 °F |
| Housing | Plastic |
| Protection class | IP20 |
| Channels | 2 internal |
| Product colour | white |
| Standards | HACCP International |
| Measuring rate | 1 min - 24 h |
| Battery life | 1 year (15 min measuring cycle, +25 °C) |
| Battery type | 2 lithium batteries (CR2032) |
| Memory | 16,000 measuring values |
| Storage temperature | -40 to +70 °C / -40° to 158 °F |
* Not for condensing atmospheres.
Pair With
- Other Testo data loggers
- Digital manometers
- Air flow meters
Equip your toolkit with the Testo 174 H BT and gain precise control over your environmental monitoring needs. Explore our full range of Testo instruments and accessories at HVAC Shop today to enhance your diagnostic capabilities.
Common Questions for Testo 174 H BT Mini Temperature and Humidity Data Logger
Any question?
If we still haven't answered your question, you can contact us below and we will get back to you as soon as possible.



















