Martindale MM67 Auto-ranging TRMS Digital Multimeter

Martindale MM67 Auto-ranging TRMS Digital Multimeter

The Martindale MM67 Auto-ranging TRMS Digital Multimeter combines True RMS measurement with an auto-ranging function to offer electricians a tool suited to work on modern electrical systems where distorted waveforms are common. It measures AC and DC voltage up to 600V, and AC and DC currents up to 10A, while True RMS capability ensures reliable results when testing non-linear loads. Resistance measurement extends to 66MΩ, giving you the flexibility to handle a wide range of testing tasks.

The MM67 includes additional functions such as diode testing, duty cycle measurement, frequency measurement up to 66MHz, and an audible continuity test for quick circuit checks. Min/Max indication helps capture fluctuations, while the relative function supports comparative measurements. An incorrect connection warning adds an extra layer of user reassurance.

Operating it is simple with a large rotary selector that allows for quick function changes, and the clear 3.5-digit LCD display with backlight ensures readings remain visible in low-light environments. The rugged over-moulded casing provides protection in demanding site conditions, helping to extend the working life of the meter while the auto power-off helps conserve battery life between jobs. The MM67 is safety rated at BS EN61010-1 CAT III 600V.

Part number: MARMM67

Key Features

• True RMS AC voltage to 600V
• DC voltage to 600V
• True RMS AC current to 10A
• DC current to 10A
• Resistance to 66MΩ
• Capacitance to 66mF
• Frequency to 66MHz
• Continuity with audible indication
• Diode testing
• Duty cycle