ToolsPicked in a guide

UNI-T UT139C UNIT Digital Multimeter Auto Range True RMS Meter Capacitor Tester Handheld 6000 Count Voltmeter Temperature

£44.99checked 18 Oct 2026 · 7 points on record

The price record

in pounds, my own readings

The price record, in pounds
Date	Price
5 Sept 2026	£44.13
14 Sept 2026	£39.75
21 Sept 2026	£44.60
1 Oct 2026	£40.53
9 Oct 2026	£45.10
12 Oct 2026	£40.56
17 Oct 2026	£44.99

My own readings, in pounds. The first point is the first reading I took; after that a point goes on only when a reading comes in 5% or more away from the one before it, which is why the gaps are uneven.

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Written about in

If you want the known brandDigital multimeters, and the three words on the box that decide itUNI-T UT139C, auto range and True RMS from the brand whose manuals and fuse ratings are easiest to find. Twelve meters from brands you can look up. True RMS, auto ranging and the counts figure are the three specifications that separate them. The safety rating, CAT, is the one most titles leave out, and its absence is the warning. Published 5 Sept 2026

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