The best PeakTech multimeters, compared.
Top pick: PeakTech P 3440 – Highest listing score: CAT IV 600 V, a colour logger and 4.5 from 260 ratings, with a slow continuity beep and no 10 A limit in the bullets. Best value: PeakTech P 4350 – Lowest shelf price in the set, about £75.18, with 1 mA up to 5 A and a 12 mm jaw. CAT III 600 V only, and the low range needs a zero. Updated October 2026.
A multimeter here is a handheld meter on test leads, or a clamp that reads current in a closed cable, for voltage, resistance and current on UK electrical work. You choose one by the printed measurement category and the voltage beside it. A CAT III rating is for distribution. A CAT IV rating is for the supply origin, and the leads have to match the meter. A jaw is for one conductor. Test leads measure current only in a circuit you have opened, and only up to the ampere limit the listing actually prints. True RMS matters when the wave is not a clean sine, because an average-responding meter can read low or high on distorted current. Display counts are resolution, not a laboratory accuracy figure. Bluetooth, a logger, a current-loop function or a low-pass filter are extras you match to the job. A pouch and a temperature probe do not make an installation tester. Prove a circuit dead with a voltage indicator where you can. Live work at the supply needs someone competent.
A multimeter here is a handheld meter on test leads, or a clamp that reads current in a closed cable, for voltage, resistance and current on UK electrical work.
15 products checked · 62 hrs invested · +18,400 readers
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Personal buying guide
Question 1 of 2
How will you take current?
The PeakTech P 3440 is a graphic True RMS handheld at £204.17 on amazon.co.uk, with a 50,000-count colour screen, Bluetooth 4.0 and an on-meter data logger. The listing line is 4.5 from 260 ratings. Three UK reviews in the sampled bodies describe plant equipment and electric forklift circuits, a colour screen that stayed readable in bright light where an LCD was not, and a pack that was still charged after four months of daily use. Those same UK notes say the continuity beep takes almost a second and that the materials do not feel like a Fluke. The title prints a Li-Po 1200 mAh pack while the INFO line says a 7.4 V Li-Ion battery and a charge adapter, and the charger plug is not stated. One bullet prints P 3340 while the title and the model number print P 3440. The title prints CAT III 1000 V and CAT IV 600 V, and a separate field says a maximum operating voltage of 600 volts. PeakTech’s own page states 10 A and ±0.05% DC basic accuracy; the amazon.co.uk bullets do not print that ampere limit.
Pros
Cons
Best for: Logging on plant and forklift circuits when you want CAT IV 600 V on a colour meter and can accept a slow continuity beep.
Less suitable: Fast continuity tracing, a buyer who needs a stated BS 1363 charger plug, or anyone reading 50,000 counts as the maker’s ±0.05% claim.
Specifications
Common questions
Does the P 3440 listing include a case and a temperature probe?
The INFO line lists a case, test leads, a K-type thermocouple, a 7.4 V Li-Ion battery, a charge adapter and a manual. The included-components field only says Tool.
What category does the listing print?
The title and the INFO line print CAT III 1000 V and CAT IV 600 V, plus EN 61010-1 and TÜV / GS. A separate field says maximum operating voltage 600 volts. Both lines are on the listing.
What do UK reviews say about the continuity beep?
A UK review from 20 January 2022 says the meter is accurate and fast, and that the continuity beep takes almost a second.
The PeakTech P 3442 is a True RMS LCD handheld at £162.90, switchable up to 60,000 counts, with Bluetooth 4.0, a 4–20 mA% loop function and a low-pass filter. The amazon.co.uk line is 4.5 from 163 ratings. A UK review from 7 July 2019 says the Android app worked, the leads were longer than 1 m, and the meter was used on mains voltage plus microamp and millivolt ranges; the same review says a laptop needed the supplied dongle and that the lead strain relief was not impressive. That buyer also reports a calibration certificate, a CD and a Bluetooth dongle, none of which appear in the INFO components line. A second UK review is only the two words Great meter. A non-UK review on the same listing reports a display fault and odd readings after about two years. The page prints CAT III 1000 V and CAT IV 600 V, plus TÜV / GS and EN 61010-1, and it does not state UKCA. PeakTech states 10 A and ±0.9% DC basic accuracy on its own page; the amazon.co.uk bullets name current without an ampere limit.
Pros
Cons
Best for: Service work that needs 4–20 mA% and a low-pass filter on a CAT IV handheld, when you do not need the colour logger.
Less suitable: A jaw measurement, a parts list that matches every item a reviewer found in the box, or a buyer who wants several detailed UK reviews.
Specifications
Common questions
Does the P 3442 listing mention 4–20 mA and a filter?
Yes. The measuring-function bullet names 4–20 mA% current-loop measurement, a low-pass filter and Auto-Hold, as well as current, voltage, capacitance and resistance.
Are batteries and a case in the INFO line?
The INFO line lists a carrying case, test leads, a K-type thermocouple, batteries and a manual. It does not name a charger.
Did a UK reviewer get Bluetooth working?
A UK review from 7 July 2019 says the Android app worked and that a laptop needed the supplied dongle because the meter did not use the laptop’s own Bluetooth.
The PeakTech P 1650 lists 400 A AC/DC True RMS at £77.70, with data hold, a Type K probe and CAT III 600 V under EN 61010-1. Across 88 amazon.co.uk ratings the line is 4.2, and the only UK review, dated 24 June 2026, says the battery arrived flat, so that buyer never checked a reading. Non-UK texts on the same page disagree with each other: one reports a lab check inside tolerance, another says the figures would not repeat and were not fit for professional work, and several mention a voltage indication with nothing nearby. The title says 4,000 counts while the INFO line says 3,999, and the power-source field says electrical (wired) while the battery field says alkaline cells are included. The scraped listing does not print a jaw opening. PeakTech’s page states 30 mm and also prints two conflicting frequency figures, so neither Amazon nor the maker gives one settled hertz limit. Item weight is 200 g in one field and 190 g in the INFO line, and the measurement accuracy field prints 1 with no unit.
Pros
Cons
Best for: A higher stated current on one conductor when CAT III 600 V is enough and you fit a fresh battery before you trust a reading.
Less suitable: Leakage at 1 mA, CAT IV work, or a buyer who needs the listing and the manufacturer to agree on power and jaw size.
Specifications
Common questions
What current does the P 1650 title state?
400 A AC/DC, True RMS, with voltage up to 600 V in the bullets. The jaw opening in millimetres is not in the listing.
Does the listing agree on the power source?
The technical block says electrical (wired). The same block says alkaline batteries are required and included, and the INFO line lists a battery.
What does the UK review say?
The only UK review, dated 24 June 2026, says the battery arrived flat, so the buyer could not tell if the meter worked.
The PeakTech P 4350 is an 80 A AC/DC True RMS clamp at £75.18, with 1 mA resolution up to 5 A, 100 mA resolution up to 80 A, and a jaw for cables up to 12 mm. The amazon.co.uk line is 4.1 from 142 ratings, and no United Kingdom review text appears in the first 50 bodies, so the written comments are from Spain, Germany, Italy and France on the same listing. Those non-UK notes use the milliamp range for RCD earth leakage, vehicle quiescent current and motorcycle charge current, and they say the relative control, called REL in a French review, has to zero the clamp first. The same sample reports low-range drift after that zero, AC current that moves with the jaw empty, and probes that feel uncomfortable. The listing prints EN 61010-1 and CAT III 600 V; CAT IV and TÜV / GS are not stated. A field prints a minimum operating voltage of 9 volts DC beside a bullet that says voltage up to 600 V. It is the lowest price of the four, which is the basis of the best-value mark, and the low range still needs that zero step.
Pros
Cons
Best for: Small-cable leakage, vehicle quiescent current or a charge lead, when the core is within 12 mm and you zero the jaw first.
Less suitable: CAT IV work at the supply, a feeder that needs the 400 A title, or a reading you will trust before relative zero.
Specifications
Common questions
How small a current does the P 4350 listing claim?
The listing says leakage currents up to 5 A at 1 mA resolution, and currents up to 80 A at 100 mA resolution, for cable diameters up to 12 mm.
What category is printed?
EN 61010-1, CAT III 600 V. CAT IV is not stated. The listing does not print TÜV / GS.
Are there UK reviews in the sample?
The amazon.co.uk line is 4.1 from 142. No United Kingdom review text appears in the first 50 bodies. A French review says the REL button has to be used to zero the clamp.
Four amazon.co.uk listings were scored from the printed category and voltage, how each meter reads current, whether the title says True RMS, resolution against the job, and logging or kit. There is no methodology note beside the display file, so the weights below follow that buying order. True RMS is on all four titles, so it does not separate them. The 0–100 figures are listing scores, not a lab test of accuracy, CAT survival or ingress protection. Each star line stays the amazon.co.uk figure. A TÜV / GS line is not UKCA.
Category and voltage
30%Up to 30 points for the category and the voltage printed together. CAT III is distribution and CAT IV is the supply origin, and the leads must match. A listing that prints CAT IV 600 V scores above one that prints CAT III 600 V only.
Current method
25%Up to 25 points for how current is taken. A handheld needs an opened circuit. A clamp reads one closed cable. A stated milliamp range and a jaw size on the listing score for leakage. An unstated ampere limit or an unstated jaw scores lower.
True RMS
10%Up to 10 points when the title says True RMS. An average-responding meter can sit well off on distorted current. All four titles say True RMS, so this block does not separate the set.
Resolution for the job
20%Up to 20 points for counts or a milliamp range against the job. Counts are display resolution, not a verified accuracy percentage. For leakage, 1 mA up to 5 A matters more than a 50,000-count screen.
Logging and kit
15%Up to 15 points for Bluetooth, an on-meter logger, a 4–20 mA loop function or a low-pass filter, plus a stated case and K-type probe. A charger plug that is not stated, or a parts list that disagrees with a review, scores lower.
Start with the printed category and voltage, then how the meter takes current, then resolution against the job, then logging and the shelf price. A shorter decision list is in the [multimeter buying guide](/hub/measuring-equipment/peaktech-multimeter/sub/peaktech-multimeter-buying-guide). The notes below follow that order for these four listings. None of the scores is a laboratory test.
A PeakTech multimeter in this comparison is either a handheld on test leads or a clamp that also measures on leads. The P 3440 is the graphic handheld. The P 3442 is the LCD handheld. The P 4350 is the 80 A clamp. The P 1650 is the 400 A clamp. A handheld reads current only in a circuit you have opened. A jaw reads current in one closed cable. Buyers in the UK need the printed category to match the place.
The highest star lines are 4.5 from 260 and 4.5 from 163, both on handhelds. A closed cable still needs a clamp. Stars do not add a jaw the listing does not have.
50,000 or 60,000 counts is display resolution. The manufacturer states ±0.05% DC for the P 3440 and ±0.9% for the P 3442. Those percentages were not verified here, and a reviewer’s laboratory comment is not a calibration.
Non-UK reviews of the P 4350 say the low range can drift until you press relative zero, and that AC current can move with the jaw empty. Do not trust a leakage reading before that step.
Read the category and the voltage as one line. Martindale’s UK note treats CAT III as distribution and CAT IV as the supply origin, and the leads have to match the meter. The P 3440 and P 3442 print CAT III 1000 V and CAT IV 600 V, with EN 61010-1. The P 3440 also has a field that says a maximum operating voltage of 600 volts, so the title and that field do not say the same thing. The P 4350 and P 1650 print CAT III 600 V only. CAT IV and TÜV / GS are not stated on the P 4350.
Match resolution to the job, then the extras, then the shelf price. True RMS is on all four titles, so it does not separate them. Fluke’s UK note says an average-responding meter can be up to 40% low, or 10% high, on a wave that is not a sine. 50,000 counts and 60,000 counts are display resolution. The manufacturer states ±0.05% DC basic accuracy for the P 3440 and ±0.9% for the P 3442. We did not test those figures.
Three typical situations, each with a recommendation from this comparison.
You already have a BS EN 61557 installation tester and want a CAT IV handheld beside it. The PeakTech P 3440 is about £204.17, with CAT III 1000 V and CAT IV 600 V, a colour logger and 4.5 from 260 ratings. The continuity beep is slow, and the maker’s 10 A limit is not in the amazon.co.uk bullets.
You need 4–20 mA% and a low-pass filter, and you do not need the colour logger. The PeakTech P 3442 is about £162.90, CAT IV 600 V, with 4.5 from 163 ratings. A UK review says a laptop needed the supplied dongle, and a certificate in that review is not in the components line.
You want current in one small cable and you can zero the jaw first. The PeakTech P 4350 is about £75.18, 80 A AC/DC, 1 mA up to 5 A, jaw to 12 mm, CAT III 600 V, with 4.1 from 142 ratings. No UK review text is in the first 50 bodies. Stop before a live consumer unit.
In this set of four amazon.co.uk listings, the top pick is the PeakTech P 3440 at about £204.17. It prints CAT III 1000 V and CAT IV 600 V, a 50,000-count colour screen, Bluetooth 4.0 and an on-meter logger, with 4.5 from 260 ratings. UK notes say the screen stayed readable in bright light, the continuity beep takes almost a second, and the materials do not feel like a Fluke. The best value is the PeakTech P 4350 at about £75.18, the lowest shelf price, an 80 A clamp with 1 mA resolution up to 5 A and a jaw to 12 mm. It prints CAT III 600 V only, and no UK review text is in the first 50 bodies. None of these scores is a lab test, and none of these meters is an installation tester.
PeakTech P 3440
Highest listing score: CAT IV 600 V, a colour logger and 4.5 from 260 ratings, with a slow continuity beep and no 10 A limit in the bullets.
PeakTech P 4350
Lowest shelf price in the set, about £75.18, with 1 mA up to 5 A and a 12 mm jaw. CAT III 600 V only, and the low range needs a zero.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
Public sources listed in the research digest. Shelf prices and star lines are the amazon.co.uk figures on these four listings. The price bands are this set, not a market average.
This page contains affiliate links to amazon.co.uk. If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are the amazon.co.uk figures on these four listings. We did not lab-test these multimeters.
