UNI-T UT325F 4-Channel Thermocouple Thermometer Logger

UNI-T UT325F 4-Channel Thermocouple Thermometer in Sri Lanka

Multi-Point Temperature Logging with Bluetooth and USB

The UNI-T UT325F 4-channel thermocouple thermometer measures four points at once and records the results for later review. It suits HVAC technicians, maintenance teams and quality-control staff in Sri Lanka who need to track temperature over time.

It supports seven thermocouple types: K, J, T, E, R, S and N. It stores up to 72,000 records, and you can view the data through the iENV smartphone app or PC software over Bluetooth or Type-C USB. For simpler one- or two-point checks, See our wider thermocouple thermometers with data logging function.

Technical Specifications

Channels

4 (T1, T2, T3, T4)

Supported Thermocouple Types

K, J, T, E, R, S, N (set per channel)

Instrument Range by Type

K: -200 to 1372°C | J: -210 to 1200°C | T: -250 to 400°C | E: -150 to 1000°C | R and S: 0 to 1767°C | N: -200 to 1300°C

Accuracy

±(0.2% + 0.5°C); excludes thermocouple error. Below -10°C: add 0.5°C; below -200°C: add 2°C.

Repeatability

±0.1% + 0.3°C

Response Time

About 500 ms

Data Logging

Up to 72,000 records; interval from 1 s to 24 h

Connectivity

Bluetooth (iENV for iOS, iENV2.0 for Android) and Type-C USB for PC software

Measurement Functions

Channel difference, MAX/MIN/AVG timing mode, data hold, offset compensation

Other Settings

°C/°F selection, 50/60 Hz interference setting, auto power-off after 10 minutes (can be disabled)

Power

3 × AAA alkaline batteries

Operating Time

More than 30 hours

Operating Environment

-10°C to 50°C; up to 90% RH non-condensing

Size

178 × 63 × 38 mm

Buying note: The ranges are the instrument's input capability, not a probe rating. The accuracy figures exclude thermocouple error. Use insulated thermocouples when a potential difference may exist between channels.

Key Features

Four-Channel Display

Shows T1 to T4 together and the difference between any two channels

Seven Thermocouple Types

Use K, J, T, E, R, S or N probes, with the type chosen per channel

On-Board Recording

Set an interval and record without a computer connected

Bluetooth and USB

Review, edit and export recorded data on a phone or PC

Offset Compensation

Correct a known probe error using an ice bath or dry-well calibrator

Backlight and Timing Mode

Readable display and timed MAX/MIN/AVG measurement

Applications

• HVAC and refrigeration checks across coils, ducts and heat exchangers
• Oven and heat-treatment temperature profiling with suitable probes
• Quality control and electronics thermal testing
• Multi-point temperature surveys over time

Package Includes

• 1 × UNI-T UT325F 4-channel thermometer
• 4 × K-type thermocouple probes
• 3 × AAA alkaline batteries
• 1 × User manual
• 1 × Safety instructions
• Gift box packaging

Downloads

📄 Download UNI-T UT325F Data Sheet
📄 Download UNI-T UT325F User Manual