Independent comparisons. We may earn from shop links. More info

Best voltage tester UK

Updated: October 2026

The best voltage tester UK shoppers can pick from this amazon.co.uk set depends on the job, because the star chart mixes pens with two-pole testers. If you need to know a cable is dead before you touch it, the top pick is the Martindale VT12. If you only want a tracer, the best value is the Aicevoos A1 pen, and you skip that pen for any dead test. Peter F. compared the six listings in our [Voltage testers](/hub/measuring-equipment/voltage-tester) table on 15 October 2026: four pens from £7.99 to £10.99 and two contact testers at £33.48 and £35.69. There was no laboratory test.

The best voltage tester UK shoppers can pick from this amazon.co.uk set depends on the job, because the star chart mixes pens with two-pole testers.

Our top picks

Aicevoos Aicevoos A1

Best overall

Aicevoos Aicevoos A1
9.2/10about £7.99
View offer
Martindale Martindale VT12

Rank 2

Martindale Martindale VT12
9.2/10about £33.48
View offer
ATUTEN Atuten UT15C

Alternative

ATUTEN Atuten UT15C
9.0/10about £35.69
View offer
On this page
  1. 1.Best for proving dead
  2. 2.What the manual adds, and what reviews subtract
  3. 3.Best value if you only need a pen
  4. 4.Who should skip both

Best for proving dead

The Martindale VT12 is £33.48 with 4.6 from 1,408 reviews. It is a two-pole tester for 12–690 V AC/DC, with continuity, BS EN 61243-3:2014 and GS38 probe tip caps. That standard line is why it is the top pick. It is the only kept listing that prints both. UK round-ups often lead with a Kewtech KT1780, a Martindale VI13800 or a Fluke. Those models are not in this set, so their prices are not used here. The wider fork is the voltage tester buying guide.

What the manual adds, and what reviews subtract

Martindale’s manual, not the amazon table, states LED steps at 12, 24, 50, 120, 230, 400 and 690 V, and CAT III 690 V / CAT IV 300 V. The amazon table leaves CAT blank. A UK review says live indication still worked with the batteries out. The product page conflicts on continuity: up to 500 kΩ in one sentence, 200 kΩ in the specification. UK reviews add battery drain within a few days, a fiddly cover, one box with no batteries, one unit that lasted about two weeks, and one that became intermittent after about a year.
Aicevoos Aicevoos A1

Testsieger

Aicevoos Aicevoos A1
9.2/10about £7.99
View offer

Best value if you only need a pen

If you will not touch a conductor, the pen is a different job. The Aicevoos A1 is £7.99 with 4.6 from 1,726 reviews, rank 1, and it is CE only. There is no BS EN 61243-3 line. Red and a faster beep mean you are closer to an AC field. One UK review says the AAA cells arrived corroded. The Kaiweets pen is £10.99, 4.5 from 16,240, title HT100 and model field HT101. One return followed a missed live, and one review found no detection through armour. The Aicevoos is the best value because it is cheaper. The Kaiweets is the pick when the sample size matters more than £3.

Who should skip both

Skip the VT12 when you came for an LCD or phase rotation. The Atuten UT15C states both, at £35.69 and 4.5 from 58 reviews, and it does not state BS EN 61243-3. UK texts include a return and false readings within seven months. Skip every pen when the next action is a screwdriver on a terminal. Skip the Mufasha T-02a, £8.99 and 4.4 from 31, when you want a deep sample. One text says it lit on wood during a 12 V camper test. A qualifying purchase through our amazon.co.uk links can earn a commission at no extra cost to you.

Common questions

Which listing is the top pick if I need to know a cable is dead?
The Martindale VT12, at £33.48 with 4.6 from 1,408 amazon.co.uk reviews. It is the only listing in this set that states BS EN 61243-3:2014 and GS38 probe tip caps, for 12–690 V AC/DC. You still prove that tester before and after the check. The amazon table does not print the CAT III 690 V / CAT IV 300 V pair that appears on Martindale’s own page, so that pair is not treated as an amazon specification.
Which pen is the best value if I only want a tracer?
The Aicevoos A1 at £7.99, 4.6 from 1,726 reviews, rank 1 in Voltage Testers. It is a non-contact AC pen with a torch and two stated ranges, 12–1000 V and 48–1000 V. Skip it for any test where you need to know a conductor is dead. One UK review reported corroded AAA cells on arrival. The technical table does not list batteries.
Why not the Kaiweets, with 16,240 reviews?
The Kaiweets pen is 4.5 from 16,240 reviews at £10.99, which is the deepest sample in this set, and the title and model field disagree (HT100 and HT101). It is still a non-contact pen, including one return after a missed live and one review that found no detection through armoured cable. Review volume breaks ties inside one type. It does not outrank a two-pole tester for proving dead.
Is the UT15C a better two-pole tester because it has an LCD?
The Atuten UT15C states an LCD, phase rotation, polarity and continuity at £35.69. Those are useful if you want a number and a rotation check. It does not state BS EN 61243-3, the sample is 58 reviews, and UK texts include a faulty return and false readings after months of daily use. The LCD does not make it the top pick against the VT12’s standard line.
Who should skip the VT12?
Skip it if you need phase rotation or a numeric LCD, because the listing does not state them. The UT15C states both and does not state BS EN 61243-3. Also weigh the battery complaints: cells that run down in a few days, a fiddly cover, and one report of a box with no batteries. It is the wrong shape of tool if you only want to scan a bundle of singles without touching them.

Related pages

How to prove a circuit is dead

Voltage tester

Voltage tester buying guide: pen or two-pole first

Non-contact voltage tester limitations on a live cable

Two-pole or non-contact voltage tester for the job

Sources

Public UK sources on safe isolation, two-pole detectors and the danger threshold. Shelf prices, stars and review counts are the amazon.co.uk lines in the six listings dated 15 October 2026. Prices move.

  1. HSE GS38, electrical test equipment for use by electricians (retrieved 16 October 2026)
  2. HSE HSG85, electricity at work: safe working practices (retrieved 16 October 2026)
  3. Electricity at Work Regulations 1989, regulation 14 (retrieved 16 October 2026)
  4. HSE HSR25, memorandum of guidance on the Electricity at Work Regulations 1989 (retrieved 16 October 2026)
  5. BSI, BS EN 61243-3:2014, two-pole low-voltage detectors (retrieved 16 October 2026)
  6. SELECT, 10 steps to safe isolation (retrieved 16 October 2026)
  7. Martindale, VT28 voltage indicator page, VT12 row (retrieved 16 October 2026)
  8. HSE, electricity frequently asked questions (retrieved 16 October 2026)