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Zenith Sales & Calibrations Pty Ltd

Earth Resistance Tester

Earth Resistance Tester

Regular price $379.50 AUD
Regular price Sale price $379.50 AUD
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  • CAT IV 600V and CAT III 1000V
  • Earth Resistance 2000Ω
  • Earth voltage to 200V
  • AC Voltage 750V
  • DC Voltage 1000V
  • Resistance 200kꭥ
  • Frequency 400Hz
  • Indicates if resistance of auxiliary spikes is within tolerance
  • Direct readout of the earth resistance on the LCD display
  • Overrange indicator
  • Zero adjustment of leads
  • Data Hold
  • Overmould casing
  • Dual LCD with backlight
  • Ideal for earth rods and lightning conductors


The MT330 is an ideal earth resistance tester for the measurement of earth rods and lighting conductors. Other ranges have been included such as AC voltage measurement up to 750V and DC voltage up to 1000V, plus a 200kΩ resistance range. The large backlit dual display LCD indicates the range measured as well as the battery voltage. The advanced circuit design permits the instrument to operate with minimum influence from earth voltage and earth resistance of auxiliary spikes. The double mould rubber injection housing ensures that the meter can handle the rough terrain when used in the field while performing earth tests.


Function Range Resolution Accuracy
DC Voltage 1000V 1V ±(0.8% + 3 Digits)
AC Voltage 750V 1V ±(1.2% + 10 Digits)
Resistance 200kΩ 0.1kΩ ±(1% + 2 Digits)
Earth Resistance 20/200/2000Ω 0.01Ω ±(2% + 10 Digits)
Earth Voltage 200V 0.1V ±(3% + 3 Digits)
Frequency 40 to 400Hz
Display LCD Display
Back Light Yes
Enclosure Over moulded case
Low Battery Indication Yes
Batteries 6 x AA
Weight 700g
Dimensions 200 x 92 x 50mm
Safety Specs IEC61010-1 CAT IV 600V


Safety Ratings


Carrying Case
Adjustable Shoulder Strap
Test Leads
3 Wire Cable
Aux Earth Spikes
6 x AA Batteries
Instruction Manual