Testo 175-T3 Temperature Data Logger
Reliable temperature monitoring supports many industrial and building systems. The Testo 175-T3 Temperature Data Logger records and stores temperature readings over time, allowing users to review data when needed. It accepts two external thermocouple probes so users can measure temperature at two locations at the same time.
The large backlit display shows readings clearly while the device stores data securely in its internal memory. The Testo 175-T3 stores up to one million readings, which allows long monitoring periods without frequent downloads. In addition, the long battery life supports continuous logging for up to three years under typical measurement conditions.
Flexible Dual Channel Monitoring
Two external thermocouple inputs allow users to measure temperatures from separate locations simultaneously. This makes the device useful when checking heating systems, monitoring flow and return temperatures or recording industrial process conditions. Because both Type K and Type T thermocouples are supported, the Testo 175-T3 offers flexible probe selection for many applications.
Secure Data Storage and Analysis
Recorded measurements remain protected thanks to non-volatile memory and integrated data security functions. Even if the batteries run flat, stored data remains safe. Furthermore, the Testo 175-T3 supports USB and SD card interfaces so measurement results can be transferred easily to a computer for evaluation using ComSoft software.
Simple programming and clear data presentation make the logger easy to use in day-to-day work. Technicians can review minimum and maximum values directly on the screen and identify limit violations quickly. As a result, the Testo 175-T3 Temperature Data Logger is well suited for heating diagnostics, industrial monitoring and long-term temperature recording.
Key Features
- Two external thermocouple inputs allow temperature monitoring at two locations
- Compatible with Type K and Type T thermocouple probes
- Large backlit display allows clear viewing of recorded readings
- Data remains protected with non-volatile memory storage
- Password protection and anti theft lock help secure recorded data
- USB interface allows quick connection to a computer
- SD card support enables simple transfer of recorded measurements
- Integrated display shows current readings and stored values
- Wall mounting option allows fixed installation in monitoring areas
- Automatic data backup prevents data loss during battery replacement
- Designed for heating system checks and industrial temperature monitoring
Technical Specifications
| Manufacturer | Testo |
| Manufacturer part code | 0572 1753 |
| Product type | Dual channel temperature data logger |
| Sensor type | Thermocouple probes Type K and Type T |
| Number of channels | 2 external probe inputs |
| Temperature measuring range Type K | -50 °C to +1000 °C |
| Temperature measuring range Type T | -50 °C to +400 °C |
| Accuracy | ±0.5 °C (-50 to +70 °C) and ±0.7% of mv (70 to 1000 °C) |
| Resolution | 0.1 °C |
| Measurement cycle | 10 seconds to 24 hours |
| Memory capacity | 1,000,000 readings |
| Display | Large LCD display with backlight |
| Operating temperature | -20 °C to +55 °C |
| Storage temperature | -20 °C to +55 °C |
| Protection rating | IP65 |
| Power supply | 3 x AAA batteries |
| Battery life | Up to 3 years at 15 minute measurement rate |
| Dimensions | 96 x 54 x 29 mm |
| Weight | 130 g |
| Housing material | Plastic |
| Standards | EU guideline 2014/30/EU and 2011/65/EU |
Comparison Table
| Measurement feature | Type K Thermocouple | Type T Thermocouple |
| Temperature range | -50 °C to +1000 °C | -50 °C to +400 °C |
| Accuracy | ±0.7% of mv from +70 to +1000 °C | ±0.7% of mv from +70.1 to +400 °C |
| Standard accuracy | ±0.5 °C from -50 to +70 °C | ±0.5 °C from -50 to +70 °C |
| Resolution | 0.1 °C | 0.1 °C |
| Typical applications | Industrial process temperature monitoring | Heating systems and environmental measurements |
