Digital Multimeter — True RMS Auto-Ranging Electrical Meter

Every electrical measurement you'll ever need, in a single instrument that fits in your tool bag.

A true RMS multimeter measures AC voltage and current correctly regardless of waveform shape — essential for modern electronics where switched-mode power supplies, motor drives, and digital signals produce non-sinusoidal waveforms. Auto-ranging selects the correct measurement scale automatically, and the CAT III safety rating means it's qualified for panel measurements in fixed electrical installations.

• DC/AC voltage: 0.1mV – 1000V (true RMS AC)
• DC/AC current: 0.1µA – 10A
• Resistance: 0.1Ω – 40MΩ | Capacitance: 1pF – 100mF
• Frequency, duty cycle, diode test, continuity buzzer, NCV detector
• 4000-count display | CAT III 600V rated | Auto power-off

Every purchase directly funds independent physics research at the Golden Physics Project.