Major Tech 400A AC True RMS Clamp Meter

$127.00 + GST

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Model no: MT720
  • CAT III 600V and CAT II 1000V
  • 4000 count backlit LCD display
  • AC and DC Voltage 1000V
  • AC Current 400A
  • Resistance 40Mꭥ
  • Frequency 100kHz
  • Capacitance 99.99mF
  • Temperate -20 to 1000˚C
  • Duty Cycle 80%
  • Ø30mm Cable Clamp size
  • INRUSH Current Measurements
  • VFD – Variable Frequency Drive voltage value
  • NCV – Non-Contact Voltage Detector
  • Built-In Flashlight
  • Continuity buzzer and Diode Test
  • Peak Mode and Data Hold function
  • Auto Power Off

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Major Tech 400A AC True RMS Clamp Meter $127.00 + GST

The MT720 is a CAT III 600V, 4000 count True RMS 400A AC digital clamp meter with indication on a large backlit LCD display, providing fast sampling time with high accuracy. The meter measures 1000V AC/DC, temperature, frequency , capacitance and resistance measurements, plus 100ms Inrush current and Peak Voltage value. The VFD function allows the user to measure stable voltage in high frequency applications of Variable Frequency Drives. Added features include Relative mode for Capacitance Zero and DCV, ACV and ACA offset adjustment, Non-Contact voltage detection, Data hold function and a built-in flashlight for dimly lit areas. Housed in a modern double moulded rubber housing.


Function Range Resolution Accuracy
AC Current 40.00A – 400.0A 10mA ±(2.5% + 8 Digits)
DC Voltage 4.000V – 1000V 1mV ±(1.0% + 3 Digits)
AC Voltage 4.000V – 1000V 1mV ±(1.2% + 5 Digits)
Resistance 400.0Ω – 40.00MΩ 0.1Ω ±(1.5% + 2 Digits)
Frequency 10Hz – 100kHz 1HZ ±(1.0% + 5 Digits)
Capacitance 99.99nF – 99.99mF 0.01nF ±(3.0% + 5 Digits)
Temperature -20 to 1000°C 0.1°C ±(3.0°C + 3 Digits)
Duty Cycle 20.0% to 80.0% 0,001 ±(1.2% + 10 Digits)
True RMS Measurements ACV, ACA
AC Bandwidth 2KHz
Digital Display 4000
Non-Contact Voltage (NCV) Yes
Overrange Indication Yes
Continuity Yes
Diode Test Yes
Jaw Size 30mm
Input Impedance >10MΩ DCV & >10MΩ VAC
Min Max Yes
Peak Hold Yes
Data Hold Yes
Back Light Yes
Enclosure Double injection moulding
Low Battery Indication Yes
Batteries 3 x AAA
Weight 305g
Dimensions 220 x 80 x 39mm
Safety Specs IEC61010-1 CAT III 600V

Safety Ratings


Test Leads
Type-K Wire Probe
Type-K Adaptor
Carrying Case
3 x AAA Batteries
Instruction Manual


Click here to download the Data sheet.

Click here to download the Instruction Manual.