Digital multimeters
A multimeter is sold on function count and bought on three things that rarely appear in the headline: the measurement category, what kind of fuse protects the current input, and whether it reads distorted waveforms correctly. Across the five meters we compare, one listing states a category and one names its fuse type.
Three meters, chosen on the specifications a first-time buyer cannot easily judge.
The coczow publishes CAT III and its ranges — 600 V AC and DC, 10 A, 20 MΩ. It states the category without its voltage, which is half a specification and more than any other meter in the hub offers. For a first meter, knowing roughly where it belongs is worth more than an extra measuring function.
The Brennenstuhl adds true RMS, 6000 counts, temperature, capacitance and frequency, and puts protective caps on the probe tips. It publishes no category, which is the disappointment — but true-RMS is the specification that decides whether readings on modern electrical loads mean anything.
The AstroAI is the cheapest here and the only listing in the hub that mentions the fuse type: double ceramic, stated as flame-retardant. On a first meter that will be used carelessly at least once, that is the component you want specified.
Leads back in the voltage sockets, every time, before the meter goes down. The KAIWEETS meter in this hub lights the correct jacks in green for the selected function, which is the only design here that addresses the mistake directly.
CAT III stated · 600 V AC/DC · 10 A · 20 MΩ · auto power-off
The only multimeter in this hub whose listing states a measurement category. It also gives its ranges plainly: 600 V AC and DC, 10 A, 20 MΩ.
Best for: Household and installation fault-finding where knowing the category matters more than the feature list.
≈ $25 / £20 / 21 €
True RMS · 6000 counts · 600 V · temperature, capacitance and frequency
A true-RMS meter with 6000-count resolution and the widest function list here — voltage, current, resistance, temperature, diode, continuity, capacitance and frequency — with probe caps included.
Best for: Household and light installation work where waveforms are not clean and the reading has to be right.
≈ £35 / 32 €
AC/DC voltage · DC current · resistance · diode · double ceramic fuse
A compact meter whose distinguishing specification is its protection: a double ceramic fuse stated as flame-retardant, plus a silicone sleeve, at fourteen euros.
Best for: A first multimeter for household and hobby electronics, chosen for its fusing rather than its features.
≈ $15 / £10 / 14 €
A manufacturer statement of the transient over-voltage an instrument is built to survive at a point in an installation — CAT II at socket outlets, CAT III in fixed installation. It is a safety rating rather than a quality grade, and a meter that does not state one cannot be placed. Follow the manual supplied with your instrument.
If the meter will ever be pointed at a dimmer, an LED driver, an inverter or a variable-speed drive, yes. An averaging meter assumes a clean sine wave and reads those systematically low.
Because the most destructive error with a multimeter is measuring voltage with the lead still in the current socket — a near short circuit across the supply. The fuse is what interrupts it, and ceramic sand-filled fuses are specified for that duty where glass ones are not.
Thermal cameras, line lasers and clamp meters swing by thirty euros or more across the year, and the biggest "discounts" often land at prices the same model sold for six weeks earlier. UniverTrack tracks the real price history across retailers, spots fake reductions, and alerts you when it is genuinely the moment to buy.
