Skip to main content

Best Multimeters for Electronics Hobbyists

Every bench needs one. Here's how to choose the right meter for what you actually do.

5 meters reviewedExact-model offers checked November 1

All Multimeters Reviewed

Fluke 117
Professional StandardTrue RMSCAT III 600V
Fluke 117

Fluke 117 lists Display counts: 6000; True RMS: true; Auto-ranging: true; Listed measurement category: CAT III 600V. Confirm the exact manual, fuse ratings and measurement-category limits before connecting to energized circuits. The matching Amazon catalog identity was checked on 2026-11-01. No independent performance or calibration test is documented.

6,000 countAuto-ranging
CapacitanceTemperatureFrequencyContinuity
9.5/10
$252.97
Buy on AmazonFull review →
UNI-T UT61E+
True RMSCAT II 1000V
UNI-T UT61E+

UNI-T UT61E+ lists Display counts: 22000; True RMS: true; Auto-ranging: true; Listed measurement category: CAT II 1000V. Confirm the exact manual, fuse ratings and measurement-category limits before connecting to energized circuits. The matching Amazon catalog identity was checked on 2026-11-01. No independent performance or calibration test is documented.

22,000 countAuto-ranging
CapacitanceTemperatureFrequencyContinuity
8.8/10
$95.99
Purchase link withheld pending exact product verification.Full review →
AstroAI AM33D
Average RMSCAT II 600V
AstroAI AM33D

AstroAI AM33D lists Display counts: 2000; True RMS: false; Auto-ranging: false; Listed measurement category: CAT II 600V. Confirm the exact manual, fuse ratings and measurement-category limits before connecting to energized circuits. The matching Amazon catalog identity was checked on 2026-11-01. No independent performance or calibration test is documented.

2,000 countManual ranging
CapacitanceTemperatureFrequencyContinuity
7.0/10
$14.99
Buy on AmazonFull review →
Klein Tools MM420
General ElectricalTrue RMSCAT III 600 V
Klein Tools MM420

A practical general electrical meter with TRMS and temperature measurement. Its 4,000-count display suits routine checks; choose a different instrument when high-resolution logging or a higher measurement category is required.

4,000 countAuto-ranging
CapacitanceTemperatureFrequencyContinuity
8.2/10
$64.6
Buy on AmazonFull review →
Fluke 87V MAX
Industrial OptionTrue RMSCAT IV 600 V / CAT III 1000 V
Fluke 87V MAX

A premium industrial option when enclosure protection, higher measurement categories and VFD filtering matter. It costs substantially more than a basic hobby meter and does not replace the Brymen BM869s high-count value proposition.

6,000 countAuto-ranging
CapacitanceTemperatureFrequencyContinuity
8.7/10
$563.87
Buy on AmazonFull review →

True RMS — Do You Actually Need It?

For electronics hobbyists working with DC circuits, Arduino, and sensor debugging: you rarely need true RMS. Basic voltage and continuity checks work fine with an average-responding meter.

Where true RMS matters: AC measurements on motors, variable frequency drives, distorted waveforms within the published frequency, crest-factor and input limits. If you work with real electrical circuits (not just PCBs), get true RMS.

CAT Ratings Explained

CAT IIReceptacle-connected loads; not a synonym for low-energy bench circuits
CAT IIIResidential wiring, distribution panels, HVAC
CAT IVService entrance, utility metering, outdoor conductors