Triplett MM520 True RMS Multimeter with Low Pass Filter

Get accurate, repeatable measurements in challenging electrical environments with the Triplett MM520 True RMS multimeter. Built for technicians who service security, surveillance, HVAC and industrial systems, this 6000-count meter provides True RMS readings and a Low Pass Filter to tame noisy VFDs, inverters and non-sinusoidal waveforms. Its broad feature set includes AC/DC voltage and current, µA current, frequency, capacitance, temperature probe input, continuity/diode tests and a 60A clamp adapter input compatible with any 10mV/A clamp. The MM520 combines safety and durability—ETL listed with a CAT III 600V rating and a rubberized overmold for drop resistance—so you can trust it on commercial sites and residential installs. Built-in NCV detection speeds live-circuit checks and the data-hold, min/max and relative modes make documentation and troubleshooting easier. Ideal for technicians focused on monitoring, security system commissioning, surveillance camera power checks, and electrical maintenance. Equip your service kit with the Triplett MM520 for dependable field performance—order now and streamline your diagnostic workflow.

• True RMS accuracy delivers reliable readings on non‑sinusoidal and noisy waveforms for confident troubleshooting
• Low Pass Filter (LPF) filters VFD and harmonic interference, simplifying motor, inverter and security system diagnostics
• Wide measurement set including AC/DC voltage, µA current, temperature and frequency for versatile field use
• 60A clamp adapter input (10mV/A) expands capability for current measurement with common clamp meters
• Rugged rubberized housing and CAT III 600V safety rating protect technicians in industrial and commercial environments
• Built-in NCV detector and data-hold/relative modes speed inspections and reduce test time