UNI-T UT306C Infrared Thermometer for Industrial Temperature Inspection Malaysia

The UNI-T UT306C Infrared Thermometer is designed for fast, non-contact surface temperature measurement in industrial maintenance, HVAC inspection, cold storage, food handling and general facility checking.

With a temperature range of −50°C to 500°C, a 12:1 distance-to-spot ratio and a distinctive circular laser targeting system, the UT306C helps users identify the actual measurement area more clearly than a conventional single-point laser thermometer.

It is suitable for maintenance teams, technicians, facility managers, contractors and quality-control personnel who need to inspect surface temperatures quickly without touching hot, moving or difficult-to-reach equipment.

Non-Contact Temperature Measurement

The UT306C detects infrared energy emitted from the surface of an object and converts it into a temperature reading.

This allows users to check equipment without making direct contact with:

Hot pipes and heating components
Moving motors, bearings and pulleys
Electrical panels and distribution boards
Refrigeration and cold-room surfaces
HVAC ducts and air-conditioning components
Food preparation and storage surfaces
Machinery that may be unsafe to touch

Non-contact measurement is useful for rapid screening and routine inspection. However, the UT306C measures surface temperature only. It does not measure the internal temperature of food, liquids, motors or electrical components.

Circular Laser Targeting

One of the main features of the UNI-T UT306C is its circular laser targeting system.

A normal single-point laser only indicates the approximate centre of the measurement area. The circular laser gives the user a clearer indication of the surface area being scanned.

This is especially useful when inspecting:

Motor housings
Bearings
Pipes
Air-conditioning components
Heating elements
Refrigeration equipment
Electrical cabinet surfaces

The laser is used for targeting only. It does not perform the temperature measurement.

−50°C to 500°C Temperature Range

The UT306C offers a broad measurement range from −50°C to 500°C, making it suitable for both low-temperature and high-temperature inspection work.

Typical applications include:

Cold-room and freezer surface inspection
Refrigeration system checking
HVAC supply and return air inspection
Motor and bearing temperature screening
Boiler and heating-system inspection
Electrical panel hotspot checking
Food-storage surface inspection
General factory preventive maintenance

Its 0.1°C display resolution helps users observe small changes in temperature during inspection.

The stated accuracy is ±2°C or ±2%, subject to the measurement conditions and the surface being tested. These specifications are published by UNI-T for the UT306C. Test & Measurement Tools and Solutions

Understanding the 12:1 Distance-to-Spot Ratio

The 12:1 distance-to-spot ratio determines the size of the surface area measured by the infrared thermometer.

At a distance of approximately 12 units, the thermometer measures a spot about one unit in diameter. For example:

At 120mm, the measured spot is approximately 10mm
At 600mm, the measured spot is approximately 50mm
At 1,200mm, the measured spot is approximately 100mm

As the distance increases, the measurement area becomes larger.

For better results, the target should be larger than the measurement spot. If the target is too small, the UT306C may also detect the temperature of the surrounding surface and produce a misleading reading.

For smaller components such as bearings, terminals or narrow pipes, move closer while maintaining a safe working distance.

Adjustable Emissivity

Different materials emit infrared energy differently. The UT306C allows emissivity adjustment from 0.10 to 1.00, enabling users to adapt the instrument to different surface materials.

Painted, oxidised, rubber, plastic and non-reflective surfaces are generally easier to measure with an infrared thermometer.

Shiny or polished surfaces may produce inaccurate readings, including:

Polished stainless steel
Aluminium
Copper
Chrome-plated parts
Reflective metal panels

When measuring reflective metal, users may need to apply suitable non-reflective tape or coating to the surface and allow it to reach the same temperature before taking a reading.

Correct emissivity setting is important when comparing temperatures across different materials.

MAX, MIN, AVG and DIF Functions

The UT306C includes several measurement modes for inspection work:

MAX displays the highest detected temperature
MIN displays the lowest detected temperature
AVG displays the average temperature
DIF displays the difference between the maximum and minimum readings

These functions help technicians scan equipment and identify abnormal temperature variations.

For example, a maintenance technician can compare similar motors, bearings or electrical connections. A component operating noticeably hotter than equivalent components may require further investigation.

Temperature difference is often more useful than a single isolated reading during preventive maintenance.

High and Low Temperature Alarm

The audible high and low temperature alarm allows users to set temperature limits for faster checking.

When the measured surface temperature exceeds or falls below the selected limit, the thermometer provides an audible warning.

This function is useful for repeated inspections such as:

Checking multiple refrigeration points
Screening electrical connections
Inspecting production equipment
Monitoring heating processes
Comparing motor operating temperatures
Verifying storage-area surface conditions

Alarm settings can help standardise routine inspections, but the selected limits should be based on the equipment manufacturer’s recommendation or the company’s maintenance procedure.

Fast Response for Routine Inspection

The UT306C has a response time of 250ms or less, allowing technicians to scan several points quickly.

Instead of waiting for a contact probe to stabilise at every location, users can perform an initial inspection from a safe distance.

A practical inspection process may include:

Confirming that the target surface is suitable for infrared measurement
Setting the correct emissivity
Selecting the required temperature unit
Aiming at the centre of the target
Ensuring the target is larger than the measured spot
Scanning the surface slowly
Recording the maximum, minimum or average temperature
Comparing the result with similar equipment or previous records

Any unusual reading should be verified before maintenance decisions are made.

Motor and Bearing Temperature Inspection

The UNI-T UT306C can be used for initial temperature screening of motors, pumps, fans and bearings.

Technicians may compare:

Drive-end and non-drive-end bearing temperatures
Similar motors operating under comparable loads
Motor body temperature before and after operation
Pump and coupling areas
Belt and pulley surfaces
Equipment temperature trends over time

A higher temperature does not automatically confirm a mechanical fault. Loading, ambient temperature, ventilation, lubrication and operating conditions can all influence the reading.

The UT306C is suitable for identifying areas that may require further inspection with a vibration meter, thermal imager or other maintenance instrument.

HVAC and Refrigeration Applications

HVAC technicians can use the UT306C for quick surface-temperature checks on:

Air-conditioning ducts
Supply and return vents
Compressor housings
Condenser surfaces
Refrigeration piping
Cold-room panels
Heating-system surfaces
Insulated and non-insulated pipe sections

Because an infrared thermometer measures surface temperature, it should not be treated as a direct replacement for a contact probe when exact air, liquid or internal temperature measurement is required.

For reliable comparison, technicians should measure similar surfaces from a similar distance and under similar operating conditions.

Electrical Inspection Applications

The UT306C can assist with preliminary temperature screening of accessible electrical equipment such as:

Distribution-board covers
Breaker surfaces
Cable insulation
Switchgear enclosures
Terminal areas
Power-supply housings

Users should observe electrical safety procedures and maintain a safe distance from live equipment.

The infrared thermometer does not replace a thermal imager for detailed hotspot analysis. A thermal imager provides a full temperature image, while the UT306C provides a temperature reading for the selected measurement area.

Main UT306C Specifications

Temperature range: −50°C to 500°C
Accuracy: ±2°C or ±2%
Resolution: 0.1°C
Distance-to-spot ratio: 12:1
Laser type: Circular laser
Response time: 250ms or less
Emissivity: 0.10 to 1.00 adjustable
Display: EBTN-LCD
Measurement modes: MAX, MIN, AVG and DIF
Alarm: Audible high and low temperature alarm
Temperature units: °C and °F
Drop-test rating: 1 metre
Power supply: Two 1.5V AAA batteries
Certification: CE and UKCA

Who Should Use the UNI-T UT306C?

The UT306C is suitable for:

Factory maintenance teams
HVAC and refrigeration technicians
Facility-management personnel
Electrical maintenance technicians
Mechanical contractors
Food-processing operators
Cold-room operators
Building inspectors
Workshop technicians
Preventive-maintenance teams

It is a practical choice for users who require fast surface-temperature screening, adjustable emissivity and a clearly indicated circular target area.

Enquire About UNI-T UT306C in Malaysia

For product enquiries, application advice or assistance selecting a suitable infrared thermometer, contact MTM Precision Sdn Bhd.

Customers may WhatsApp us with a photo of the intended application, target material and expected temperature range for an initial recommendation.

MTM Precision Sdn Bhd
Showroom & Service Centre: No. 29-1 & 29-2, Jalan Bandar 18, Pusat Bandar Puchong, 47160 Puchong, Selangor, Malaysia
Tel: 03-8080 7172
WhatsApp: +6016-660 7346
Email: mtmpre@yahoo.com
Website: www.mtmpre.com.my

UNI-T UT306C Infrared Thermometer for Industrial Temperature Inspection Malaysia