Major Tech LED Voltage Tester MT478

  • 2000 Count LCD display
  • LED Indication to 6V to 1000V AC/DC
  • Fixed impedance -200kΩ (≤ 3,5mA@1000V)
  • Switchable load by 2 push buttons (30mA@230V)
  • Vibration during load
  • Rotary field direction
  • Flash light
  • 4mm probe tip thickness
  • CAT IV 600V and CAT III 1000V

1 in stock (can be backordered)


1 in stock (can be backordered)

Major Tech LED Voltage Tester MT478

The MT478 is a 2-Pole voltage, continuity, and phase tester with rapid LED indication of voltage levels. The backlit LCD display offers the user accurate voltage measurements. The voltage range is from 12V to 1000V AC/DC on LED indication and 6V to 1000V AC/DC on LCD display. When AC/DC Voltage is detected the meter has three ways to indicate the voltage, a visual display (LED and LCD), sound, and vibration when the load buttons are pressed. The vibration operates similar to traditional solenoid type voltage testers and meets IEC1010-1 CAT IV 600V safety requirements.

The MT478 has a rotary field detection for testing 3-Phase systems as well as a single-pole Phase Test. Other features include a built-in flashlight, Continuity Buzzer. Diode Test. High Quality heavy-duty molded IP64 case, a thicker cord with wear indicator and well fitted and durable probe protector.

Ideal for Voltage Measurements in Industrial Environments. Press the load button to check the Voltage drop under load. Meter vibrates to indicate load is being applied. The Probes hook into the side of the meter and the spacing between the tips is exactly the correct distance for measuring Socket Outlets.

Accessories :

  • 4mm Screw on Test Probes for more robust application
  • Test Probe cover and  accessories holder
  • Test probe covers for CATIV 600V
  • Screw-in Test probes and Test Probe cover
SKU: MT478 Category: Tags: ,


DC Voltage 6 to 1000V
DC Voltage accuracy ±(3.0% +5)
AC Voltage 6 to 1000V
AC voltage accuracy ±(3.0% +5)
Rotary field 100 – 400V
RCD Test 30mA@230V
Resistance 0-1999Ω
Continuity resolution ≤400kΩ
AC Bandwidth 50.0Hz to 60.0Hz
Digital Display 2000 count LCD
Low Input impedance <6kΩ
Enclosure IP64
Power source 2 x LR03
Size 240 x 78 x 30mm
Weight 237g

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