0 ratings
UNI-T UT139A CAT III 600V True RMS Digital Multimeter with Frequency,NCV,Resistance, Voltage,Temperature Measurement,Red/Grey
The UT139 series are CAT III 600V digital multimeters designed for electricians, featuring NCV, True RMS, and a built-in 31-segment analog bar for better measurement visualization.
UNI-T UT139A CAT III 600V True RMS Digital Multimeter with Frequency,NCV,Resistance, Voltage,Temperature Measurement,Red/Grey
Item #: 68905430

UNI-T UT139A CAT III 600V True RMS Digital Multimeter with Frequency,NCV,Resistance, Voltage,Temperature Measurement,Red/Grey

Item #: 68905430

AUD 123

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

0 ratings Write a review
In stock
us Imported from USA store

QTY:

Order now and get it around Saturday, July 11
Our Top Logistics Partners
  • fedex
  • dhl
The UT139 series are CAT III 600V digital multimeters designed for electricians, featuring NCV, True RMS, and a built-in 31-segment analog bar for better measurement visualization.
U-Care Warranty:
None
Select a Plan
buy now pay later

Buy Now Pay Later

fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified


paypal payment
afterpay payment
visa payment
mastercard payment
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

True RMS Accuracy
Ensures precise measurement of both AC and DC signals, making it ideal for professionals who require reliable data in complex electrical environments.
Safety Rated
CAT III 600V rating offers robust protection against electrical hazards, making it a safe choice for electricians and technicians working on high-voltage equipment.
Versatile Measurements
Measures frequency, non-contact voltage, resistance, and temperature, providing extensive functionality for a wide range of electrical and electronic applications.

Product Details

Shop UNI-T UT139A CAT III 600V True RMS Digital Multimeter with Frequency,NCV,Resistance, Voltage,Temperature Measurement,Red/Grey online at a best price in Australia. B0BLN1VSM9
Item Weight1.02 lbs (460 grams)

Who Should Buy?

Suitable For
  • Electricians

    Ideal for electricians needing reliable measurements for voltage, current, resistance, and temperature in electrical systems.

  • DIY Enthusiasts

    Perfect for hobbyists and DIYers who require versatile measurement tools for various home and automotive projects.

  • Technicians

    Suitable for technicians performing regular maintenance and troubleshooting on electronic devices and appliances.

Not Suitable For
  • Advanced Engineers

    Not ideal for advanced engineers needing high-end features beyond the standard capabilities of a multi-meter.

  • Occasional Users

    Users requiring infrequent measurements may find this multimeter more sophisticated than necessary for their needs.

  • Students

    May be too complex for students learning basic electrical concepts who need simpler tools for their coursework.

Product Description

UNI-T UT139A CAT III 600V True RMS Digital Multimeter with Frequency,NCV,Resistance, Voltage,Temperature Measurement,Red/Grey

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What are the key features of the UNI-T UT139A multimeter?

    Answer: The UNI-T UT139A multimeter is equipped with True RMS capability, ensuring precise measurements for both AC and DC voltages. It features up to 600V CAT III safety rating, providing versatility for electrical professionals. Additionally, it includes functions for measuring frequency, non-contact voltage (NCV), resistance, and temperature, all in one compact device. This integration allows users to handle various electrical tasks like troubleshooting circuits or monitoring appliances efficiently.
  • Question: How can I measure temperature with the UNI-T UT139A?

    Answer: To measure temperature, the UNI-T UT139A utilizes an external thermocouple (typically K type), which you insert into the specified port. Switch the multimeter to the temperature setting, indicated by the °C or °F symbol. This feature is invaluable in HVAC applications or when assessing the performance of heating elements, as it allows for precise monitoring and adjustments based on real-time data.
  • Question: What is the significance of True RMS in the UNI-T UT139A?

    Answer: True RMS (Root Mean Square) is significant as it allows the multimeter to provide accurate readings of non-sinusoidal waveforms, commonly found in modern electrical systems. This capability ensures that voltage and current measurements reflect their true effective value, crucial for users in power quality analysis or electrical engineering tasks. It ensures reliable data when diagnosing issues in electronic devices or assessing electrical installations.
  • Question: Can the UNI-T UT139A be used for measuring non-contact voltage?

    Answer: Yes, the UNI-T UT139A can measure non-contact voltage (NCV). This function allows users to detect live electrical wires without direct contact, enhancing safety during electrical work. To use this feature, simply switch the multimeter to NCV mode, and bring the device near the conductor. It’s particularly useful for electricians during installations or maintenance, providing a quick and safe way to identify potentially hazardous situations.
  • Question: What types of batteries does the UNI-T UT139A utilize?

    Answer: The UNI-T UT139A operates on a 9V battery, making it user-friendly and easily replaceable. This power source ensures that the multimeter functions effectively for various measurements, while its low power consumption allows for extended usage. Users will appreciate having a dependable meter at hand for daily tasks in workshops, electronics troubleshooting, and educational environments.
  • Question: What is the maximum resistance measurement of the UNI-T UT139A?

    Answer: The UNI-T UT139A can measure resistance up to 40 MΩ. This high range allows for testing the integrity of resistors, assessing cable quality, or troubleshooting electrical circuits. When conducting continuity tests, this feature ensures that users can effectively diagnose issues by confirming whether connections are intact or if resistive faults need attention.
  • Question: Is the UNI-T UT139A suitable for beginners?

    Answer: Yes, the UNI-T UT139A is user-friendly, making it suitable for beginners as well as professionals. Its intuitive interface, along with a rotatable dial for selecting various functions, simplifies the measurement process. New users can quickly learn to measure voltage, current, and resistance. It’s ideal for DIY enthusiasts, students, or anyone learning about electrical systems.
  • Question: How do I maintain the UNI-T UT139A multimeter?

    Answer: Maintaining the UNI-T UT139A involves keeping the device clean and regularly checking its calibration. Clean the exterior with a damp cloth and avoid exposure to moisture. Periodically test the meter against known values to ensure accurate readings. Proper maintenance helps extend the longevity of the multimeter, making it a reliable tool for different measurement tasks over time.
  • Question: What safety features does the UNI-T UT139A include?

    Answer: The UNI-T UT139A features a CAT III 600V safety rating, providing essential protection against high voltage. It also has a fused input for current measurements to prevent damage to the device. These safety mechanisms are vital for users working in electrical environments, ensuring that they can conduct measurements with confidence, minimizing risks during troubleshooting or installations.
  • Question: Where can I buy the UNI-T UT139A in Australia?

    Answer: You can purchase the UNI-T UT139A CAT III 600V True RMS Digital Multimeter at Ubuy. Ubuy offers a range of high-quality electronics, ensuring you receive a genuine product while benefiting from reliable customer support. Explore Ubuy for a smooth shopping experience and find the best tools for your measurement needs.

UNI-T Multi Testers Editorial Review

No editorial reviews found

Customer Reviews & Ratings

5.0
1 customers ratings
  • 5 Star
    100%
  • 4 Star
    0%
  • 3 Star
    0%
  • 2 Star
    0%
  • 1 Star
    0%

Review this product

Share your thoughts with other customers

Platform Trust & Buyer Confidence

trustpilot logo
4/5 284 + reviews
Read reviews
JB
Jane
Verified buyer

“Great continuous communication. Packaged well. Arrived promptly.”

12 June 2026 · via Trustpilot
MM
MAV MTBLife
Verified buyer

“1st buy, Ubuy. Shopping made easy if you don't mind the international shipping cost. Bought the product I wanted and the shipping was fast. I look forward for next shopping☺️”

10 June 2026 · via Trustpilot
AP
amanda
Verified buyer

“Great communication, prompt delivery.”

7 June 2026 · via Trustpilot
DD
Disa
Verified buyer

“I'm getting used to an excellent buyer experience with Ubuy and have begun to rely on them for any purchases I make in the US.”

5 June 2026 · via Trustpilot
KB
Katie
Verified buyer

“Delivery was prompt, with many updates along the way.”

23 May 2026 · via Trustpilot
Secure Checkout Global Delivery Easy Returns Genuine Products

Product Price History

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.