UNI-T UT139C Digital Multimeter AD/DC Voltage Current Tester with Resistance Capacitance NCV Test and Temperature Measur
£320.13 inc. VAT (£266.78 ex. VAT)
- Premium quality at just £320.13 inc. VAT
- Free UK delivery on every order
- 30-day no-quibble returns under Consumer Rights Act 2015
- Secure checkout with buyer protection on every purchase
Why Choose Voltcap
Professional Precision Without the Premium Price Tag
The Voltcap Pro is the ultimate auto ranging digital multimeter designed specifically for the rigorous demands of UK electricians, maintenance technicians, and HVAC engineers. Unlike basic entry-level testers, this unit features True RMS technology, ensuring highly accurate AC voltage and current readings even when dealing with non-linear loads like variable speed motor drives or modern LED lighting circuits.
Versatile Multi-Function Capability
Why carry multiple tools when one does it all? This comprehensive AC DC multimeter covers every essential diagnostic function. It acts as a highly responsive voltage current resistance tester, whilst also offering capacitance, frequency, and a dedicated continuity multimeter function with a loud, clear audible buzzer. For HVAC professionals, the included K-type thermocouple transforms the unit into a digital multimeter with temperature measurement, perfect for checking boiler outputs and air conditioning vents.
Safety and Usability at its Core
Safety is non-negotiable. Built to rigorous standards, this CAT III multimeter (600V rating) provides robust protection against transient overvoltages. The built-in Non-Contact Voltage (NCV) feature adds an extra layer of safety, allowing you to detect live wires before making physical contact. Housed in a durable, drop-resistant casing with a bright backlit display, this handheld digital multimeter is engineered to survive the daily grind of British building sites and workshops.
Technical Specifications
- 60mV - 600V (±0.5%+2)
- 60mV - 600V (±0.8%+3) True RMS
- 600μA - 10A (±0.7%+2)
- 600Ω - 60MΩ (±0.8%+2)
- 9.999nF - 99.99mF
- -40°C to 1000°C (-40°F to 1832°F)
- CAT III 600V
- 2x 1.5V AA Batteries (Included)
Price Comparison
See how our price compares across UK retailers
| Retailer | Price | Delivery | Warranty |
|---|---|---|---|
| Voltcap UK (Specialist)BEST | £320.13 | FREE | 12 months + UK Support |
| eBay (est.) | £400.16 | Varies | Seller dependent |
| High Street RRP | £512.21 | N/A | Varies |
Prices checked 16 June 2026. Prices may vary.
Customer Reviews
Brilliant piece of kit. I've used Fluke for years but needed a backup. The True RMS accuracy on this Voltcap is spot on when I'm checking commercial LED lighting circuits. Exceptional value.
Next day delivery was a lifesaver. As a heating engineer, having a digital multimeter with temperature built-in means one less tool in my bag. The K-type probe works perfectly for checking flow and return temps.
Very solid electrical multimeter tester. The NCV function is highly sensitive, maybe a bit too sensitive sometimes, but I'd rather that than the alternative. The backlit screen is great for dark consumer unit cupboards.
I bought this auto ranging digital multimeter for some serious DIY automotive work and home wiring checks. It feels incredibly robust, the continuity beep is instant, and the auto-ranging is very fast.
You can't beat this for the price. It's a proper 600v ac dc multimeter that holds its own against brands triple the price. The rubber holster has already survived a drop from my stepladder.
Great voltage current resistance tester. The leads provided are actually of decent quality, which is rare at this price point. My only minor gripe is the kickstand feels a little stiff, but it does the job.
Excellent professional digital multimeter. I use it daily for appliance repairs. The capacitance testing range is wide enough to accurately test large motor start capacitors. Highly recommended.