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Specification table for a UT139C digital multimeter showing voltage, current, resistance, capacitance, frequency, temperature, and feature details.

The Multimeter Digital Multimeter UK Trades Trust

A true RMS 600V digital multimeter built for electricians, HVAC engineers, and precise everyday fault-finding.

4.8 / 5.0

Voltcap

Voltcap
4.8 (53 reviews)
£320.13

£320.13 inc. VAT (£266.78 ex. VAT)

Only 12 left — 37 ordered this week

A robust, auto ranging digital multimeter featuring True RMS, NCV detection, and temperature measurement for comprehensive electrical diagnostics.

636+

Happy Customers

4.8★

Avg Rating (53+ reviews)

93%

Satisfaction Rate

🇬🇧

Loved Across Britain

Trade Reviews

Verified Purchase

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.

Mark Harrison, Birmingham
Verified Purchase

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.

David Jenkins, Swansea
Verified Purchase

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.

Ian Fletcher, Manchester
Verified Purchase

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.

Sarah Collins, London
Verified Purchase

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.

Colin Wright, Glasgow
Verified Purchase

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.

Paul Davies, Bristol

Free UK Delivery

Next-day dispatch from our UK warehouse

2-Year UK Warranty

Full manufacturer warranty with local support

30-Day Free Returns

No questions asked, prepaid return label

True RMS Accuracy

Reliable AC measurements in real-world environments

Operating Instructions

How to use
  1. Preparation: Insert the supplied AA batteries and turn the rotary dial to your desired testing function (e.g., V~ for AC Voltage).
  2. Connecting Leads: Plug the black test lead into the COM terminal and the red lead into the appropriate terminal (V/Ω/Hz for voltage/resistance, or the 10A terminal for high current).
  3. Measurement: Apply the test probe tips to the circuit or component. The auto-ranging feature will automatically select the best resolution for your reading.
  4. Using NCV: Turn the dial to the NCV position and bring the top of the meter close to the suspected live power source. The meter will beep and flash if voltage is detected.
  5. Temperature Testing: Remove standard leads, insert the K-type thermocouple ensuring correct polarity, and select the °C/°F function on the dial.

Trusted by Over 4,000 UK Electricians & Engineers

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Technical FAQs

At Voltcap, we understand that British tradespeople and dedicated DIYers need reliable diagnostic tools that won't let them down on the job. Founded to bridge the gap between ultra-premium industrial brands like Fluke and basic, unverified entry-level testers, we focus on delivering professional-grade accuracy and robust safety features at an accessible price point.

Our flagship testing instruments are designed with real-world UK environments in mind. Whether you are fault-finding in a dimly lit residential loft, checking industrial HVAC systems, or performing routine maintenance on a commercial consumer unit, our multimeters provide the True RMS precision and multi-functional versatility required to get the job done safely.

We pride ourselves on rigorous quality control, ensuring every meter meets strict CAT III / CAT IV safety standards where applicable. By backing our products with a comprehensive 2-year UK warranty and dedicated local support, Voltcap is committed to equipping electricians, contractors, and technicians with the confidence to tackle any electrical challenge.

Why UK Customers Love Us

Our products are designed and supported in the UK, ensuring superior quality and fast tracked delivery from our British warehouse. We offer free UK delivery on all orders, eco-friendly packaging to reduce carbon footprint, and warm, direct customer service. Every order is backed by a generous 30-day returns policy under the UK Consumer Rights Act 2015 — you are always protected.

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Voltcap

Voltcap provides dependable, high-performance testing instruments for UK electricians, HVAC engineers, and serious DIYers. We bridge the gap between ultra-premium industrial brands and basic entry-level testers, delivering true technical accuracy and everyday usability.

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