Kindly Morrow
4000-Count TRMS Auto-Range Digital Multimeter
Measure AC/DC voltage up to 1000V, resistance, and continuity with true RMS accuracy on a 4000-count display. Toggle between auto-range and manual range depending on whether you want speed or precision. Built for the bench, field-ready, and accurate enough that you'll actually trust the readings.
Project idea: Wire up a battery drain tester for your ESP32 projects: use the multimeter in DC current mode (with appropriate shunt) to measure sleep-mode draw, helping you dial in deep sleep firmware for months-long coin cell operation.
Key Features
- True RMS (TRMS) measurements for accurate readings on non-sinusoidal waveforms
- 4000-count display with switchable auto/manual range mode
- AC/DC voltage range: up to 1000V
- Resistance measurement with continuity beep
- CAT III or CAT IV rated input protection (verify via included datasheet)
- Ships from US warehouse, 278 units in stock
- Compact form factor suitable for both bench work and field diagnostics
Frequently Asked Questions
What does TRMS mean and why does it matter?
True RMS meters calculate the actual power of a waveform, not just a scaled peak value. If you're measuring anything other than a pure sine wave (motor drives, switching supplies, PWM circuits), a non-TRMS meter will give you wrong numbers. This one won't.
What's the difference between auto-range and manual range?
Auto-range selects the best measurement range for you automatically, which is faster for general probing. Manual range lets you lock to a specific range for faster refresh and more control when you already know what you're measuring.
Is this safe for mains voltage work?
The meter measures up to 1000V AC/DC. Always verify the CAT rating on the unit label before using on mains or industrial circuits. CAT III is appropriate for fixed installation wiring; CAT IV covers utility-level work. Use rated probes to match.
