MT777: Precision Power in the Palm of Your Hand


Accuracy and reliability are at the heart of every Major Tech instrument, and the MT777 True RMS AC/DC Clamp Meter upholds this standard with distinction. Combining high performance with portability, the MT777 offers professionals a dependable and convenient solution for everyday electrical testing. With advanced technology and practical features, it is the ideal tool for electricians and technicians who demand both precision and durability.

True RMS for Reliable Accuracy

Equipped with True RMS measurement technology, the MT777 ensures precise results even when measuring complex or distorted waveforms. This capability is particularly valuable in modern electrical systems that incorporate non-linear loads such as LED lighting, inverters, and variable speed drives. Whatever the waveform, the MT777 delivers consistent accuracy with every reading.

Compact Design, Powerful Capability

Despite its compact size, the MT777 offers impressive functionality. It measures AC and DC current up to 600 amps and voltage up to 600 volts, making it suitable for both domestic and commercial applications. Additional functions include resistance, frequency, and capacitance measurement, providing a versatile tool for a wide range of electrical tasks. The 30 millimetre jaw allows easy access around standard conductors, while the robust housing ensures durability on site.

Designed for Ease and Efficiency

Every feature of the MT777 is designed to simplify testing. The large backlit display ensures clear visibility in all lighting conditions, while data hold and maximum/minimum recording functions make comparing readings straightforward. A continuity buzzer and diode test enable rapid fault detection. Lightweight and ergonomically designed, the MT777 offers comfort during prolonged use without compromising strength or stability.

Safety First

Safety is central to Major Tech’s design philosophy. The MT777 is rated CAT III 600V, providing solid protection for electricians working on distribution systems and fixed installations. A built-in non-contact voltage detector further enhances safety by allowing quick checks for live circuits before work begins.

A Dependable Everyday Companion

The MT777 is a compact and reliable meter suited for both maintenance and troubleshooting. From verifying current draw to checking supply voltage and continuity, this versatile clamp meter ensures dependable results every time.

Built on Major Tech Quality

Every detail of the MT777 reflects Major Tech’s commitment to precision, performance, and reliability. Rugged, compact, and easy to use, it is more than a measuring tool; it is a trusted partner designed for today’s demanding electrical environments. With the MT777, Major Tech continues to empower professionals with instruments that perform to the highest standard.