UT321 Digital Thermometer

UT321 Digital Thermometer

The UT321 Digital Thermometer is a professional contact-type temperature measurement instrument designed for engineers, electricians, laboratory technicians, and industrial maintenance professionals. This device measures temperature using external thermocouple probes, allowing accurate readings in many industrial and scientific applications. As a result, technicians can monitor temperature in electrical equipment, HVAC systems, manufacturing processes, and laboratory environments.

Moreover, the UT321 Digital Thermometer supports multiple thermocouple types including K, J, T, and E, which allows users to measure a wide range of temperatures depending on the selected probe. This flexibility makes the device suitable for different industrial measurement requirements and testing environments.

In addition, the thermometer provides a very wide measurement range. For example, when using a K-type thermocouple, the device can measure temperatures from −200°C up to 1372°C. Because of this wide range, technicians can use the thermometer to inspect electrical motors, industrial furnaces, heating systems, refrigeration equipment, and laboratory experiments.

Furthermore, the UT321 Digital Thermometer features a single temperature input (T1) for connecting a thermocouple probe. The device includes functions such as MAX, MIN, and AVG temperature display, which help technicians monitor temperature variations over time. These features allow users to analyze system performance and detect abnormal temperature conditions during equipment operation.

Another important advantage of this thermometer is its data logging capability, which allows storage of up to 100 measurement records. In addition, the device includes a USB interface that enables users to transfer measurement data to a computer for analysis using dedicated software. Consequently, technicians can record temperature measurements and generate inspection reports efficiently.

The thermometer also includes practical functions such as data hold, backlit LCD display, automatic power-off, and low battery indication. These features make the device easier to operate during field inspections and laboratory testing. Because of its durable construction and professional measurement capabilities, the UT321 Digital Thermometer is widely used for industrial maintenance, electrical diagnostics, HVAC system monitoring, and laboratory temperature measurements.

Key Features

• Contact Temperature Measurement
  Uses thermocouple probes for precise temperature measurement.

• Multiple Thermocouple Support
  Compatible with K, J, T, and E type probes.

• Wide Temperature Measurement Range
  Up to 1372°C with K-type thermocouple.

• Data Logging Function
  Stores up to 100 measurement readings.

• USB Data Transfer
  Allows data export to PC software for analysis.

• MAX / MIN / AVG Temperature Modes
  Helps monitor temperature variations.

• Backlit LCD Display
  Ensures clear readings in low-light environments.

• Portable Industrial Design
  Suitable for field inspections and laboratory work.

Applications

The UT321 Digital Thermometer is commonly used in many professional temperature monitoring applications, including:

• Industrial equipment temperature inspection

• Electrical system diagnostics

• HVAC system maintenance

• Laboratory temperature measurements

• Manufacturing process monitoring

• Automotive maintenance and repair

Technical Specifications (Datasheet)

• Model: UNI-T UT321

• Product Type: Digital Contact Thermometer

• Thermocouple Types: K, J, T, E

• K-Type Measurement Range: −200°C to 1372°C

• J-Type Measurement Range: −210°C to 1200°C

• T-Type Measurement Range: −250°C to 400°C

• E-Type Measurement Range: −150°C to 1000°C

• Accuracy: ±(0.5% + 0.8°C)

• Resolution: 0.1°C

• Data Storage: 100 readings

• Display: Backlit LCD (30 × 32 mm)

• Power Supply: 9V battery or USB power

• Dimensions: 175 × 85 × 30 mm

• Weight: ≈270 g