Uni-T UT325F 4-Channel Digital Thermometer

The Uni-T UT325F 4-Channel Digital Thermometer is a professional-grade measuring instrument engineered for high-precision temperature monitoring across multiple points simultaneously. Designed for versatility and reliability, this device supports seven different thermocouple types, making it an essential tool for industrial, laboratory, and HVAC technical environments. Its robust construction and advanced digital processing ensure consistent performance during demanding thermal analysis tasks.

Advantages

This thermometer stands out due to its ability to track four distinct temperature zones at once, providing a comprehensive overview of thermal processes. The integration of MIN, MAX, and AVG modes, along with a data hold function, allows for efficient monitoring without constant manual observation. With a large internal memory capacity for up to 72,000 data points and modern connectivity options including USB-C and Bluetooth, users can seamlessly transfer and analyze data on external devices. The inclusion of offset compensation further refines measurement accuracy, while the durable, drop-resistant housing ensures the device remains functional even in challenging field conditions.

Suitable for

• Industrial process monitoring and quality control
• Laboratory research and experimental thermal testing
• HVAC system installation and maintenance
• Electronic component temperature analysis
• Long-term environmental temperature logging

When it may not be suitable

This device may not be the optimal choice for applications requiring non-contact temperature measurement, such as scanning distant surfaces or moving objects, as it relies on physical thermocouple probes. Additionally, it is not designed for high-pressure or highly corrosive environments where specialized, hermetically sealed industrial sensors would be required.

Key specifications

• Four independent measurement channels
• Supports thermocouple types K, J, T, E, R, S, N
• Measurement resolution of 0.1°C or 1°C depending on range
• Fast response time of approximately 500 ms
• Internal data logging capacity of 72,000 records
• Bluetooth and USB-C connectivity for data export
• Backlit display for low-light operation
• Drop resistance up to 1 meter
• Powered by 3 x AAA batteries with over 30 hours of runtime

How to use

To begin, connect the appropriate thermocouple probes to the designated input channels on the top of the device. Power on the thermometer and select the correct thermocouple type in the settings menu to match your probes. Place the sensors at the desired measurement points and observe the real-time readings on the display. You can toggle between channels or view the temperature difference between sensors using the dedicated function buttons. To record data, activate the logging mode, and later transfer the stored information to your computer or mobile device via the available connectivity ports for detailed analysis.

What to consider before purchase

• Ensure the thermocouple types provided or available for purchase are compatible with your specific temperature range requirements.
• Verify that the cable lengths of the probes are sufficient for the distance between your measurement points.
• Check if your data analysis software is compatible with the device's export formats.
• Consider the operating environment to ensure it stays within the specified temperature and humidity limits.

Usage recommendations

For the most accurate results, ensure that the thermocouple probes are securely attached to the surface or medium being measured, using thermal paste if necessary to improve heat transfer. Regularly calibrate the device according to your internal quality standards and replace batteries promptly when the low-power indicator appears to prevent data loss during logging sessions.