UT303C Infrared Thermometers

UT303C Infrared Thermometer

The UT303C Infrared Thermometer is a professional non-contact temperature measurement device designed for engineers, electricians, HVAC technicians, and industrial maintenance specialists. This infrared thermometer allows users to measure surface temperatures instantly without touching the object. As a result, technicians can safely inspect hot machinery, electrical components, and industrial equipment while maintaining a safe working distance.

Moreover, the UT303C Infrared Thermometer uses advanced infrared sensing technology to detect the thermal radiation emitted from an object’s surface. The device converts this radiation into an accurate digital temperature reading displayed on the screen. Therefore, technicians can perform fast and reliable temperature inspections during electrical maintenance and equipment diagnostics.

In addition, the thermometer offers a very wide temperature measurement range from -32°C to 1050°C, making it suitable for demanding industrial environments such as power systems, manufacturing facilities, and heavy machinery inspection. Because of this wide range, technicians can monitor temperatures in motors, transformers, bearings, furnaces, and heating systems effectively.

Furthermore, the UT303C Infrared Thermometer features a 30:1 distance-to-spot ratio, which allows accurate measurement from a longer distance. This optical resolution enables technicians to measure smaller targets safely without approaching extremely hot surfaces.

Another important advantage of this device is its adjustable emissivity (0.10 – 1.0). Users can adjust the emissivity according to the material being measured, such as metal, plastic, rubber, or painted surfaces. Consequently, the thermometer provides more accurate temperature readings across different industrial environments.

The thermometer also includes useful functions such as laser targeting, data hold, MAX/MIN measurement, and backlit LCD display. These features help technicians quickly identify overheating components and read temperature values clearly even in low-light working conditions.

Because of its professional performance, wide temperature range, and reliable design, the UT303C Infrared Thermometer is widely used in electrical maintenance, industrial inspection, HVAC diagnostics, automotive testing, and building maintenance.

Key Features

• Non-Contact Temperature Measurement
  Measures surface temperature safely without touching the object.

• Wide Temperature Measurement Range
  Measures temperatures from -32°C to 1050°C.

• 30:1 Distance-to-Spot Ratio
  Allows accurate measurement from longer distances.

• Adjustable Emissivity (0.10 – 1.0)
  Improves measurement accuracy on different materials.

• Laser Targeting System
  Helps technicians aim precisely at the measurement point.

• Fast Response Time (~250 ms)
  Provides quick temperature readings.

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

• Data Hold and MAX/MIN Functions
  Allows easy recording and monitoring of temperature values.

Applications

The UT303C Infrared Thermometer is widely used in many professional temperature monitoring tasks, including:

• Electrical panel and transformer inspection

• HVAC system diagnostics

• Motor and bearing temperature monitoring

• Industrial furnace inspection

• Automotive maintenance and repair

• Building maintenance and energy auditing

Technical Specifications (Datasheet)

• Model: UNI-T UT303C

• Product Type: Digital Infrared Thermometer

• Temperature Range: -32°C to 1050°C

• Accuracy: ±1.8°C or ±1.8%

• Repeatability: ±0.5°C or ±0.5%

• Resolution: 0.1°C / 0.1°F

• Distance-to-Spot Ratio: 30:1

• Response Time: ≈250 ms

• Emissivity: Adjustable (0.10 – 1.0)

• Spectral Response: 8µm – 14µm

• Laser Type: Class II (<1 mW)

• Laser Wavelength: 630–670 nm

• Power Supply: 9V Battery or USB