MT723 400A True RMS Clamp Meter

The Major Tech MT723 True RMS 400A Clamp Meter is a versatile, high-precision diagnostic tool designed for electrical testing in automotive, EV and industrial workshop environments. Built for reliability and ease of use, this clamp meter enables safe, non-invasive current measurement without disconnecting circuits.

Capable of measuring AC/DC current up to 400A and voltage up to 1000V, the MT723 supports a wide range of diagnostic applications, including EV system testing, charging infrastructure checks and workshop electrical maintenance. True RMS measurement ensures accurate readings even in complex or variable frequency environments such as EV drive systems.

Additional features such as inrush current measurement, VFD compatibility, non-contact voltage detection and integrated flashlight make this an essential tool for technicians working in modern high-voltage and hybrid vehicle environments.

Key Features

  • True RMS measurement for accurate readings
  • AC/DC current measurement up to 400A
  • Voltage measurement up to 1000V
  • Inrush current and peak measurement capability
  • VFD mode for variable frequency drive applications
  • Non-contact voltage (NCV) detection
  • Built-in flashlight for low-light environments
  • Large backlit LCD display
  • Temperature, capacitance and frequency measurement
  • Compact, durable rubberised housing

Technical Specifications

Function Range
AC Current 40A – 400A
DC Current 40A – 400A
AC Voltage Up to 1000V
DC Voltage Up to 1000V
Resistance Up to 40MΩ
Capacitance Up to 100mF
Frequency 10Hz – 100kHz
Temperature -20°C to 1000°C
Display 4000 count backlit LCD
Clamp Size Ø30mm
Dimensions 220 x 80 x 39 mm
Weight 305g