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MEWOI4480A Insulation Resistance Tester,0.1MΩ~200GΩ/2500V/DAR/PI Megger,
MEWOI4480A Insulation Resistance Tester,0.1MΩ~200GΩ/2500V/DAR/PI Megger,
MEWOI4480A Insulation Resistance Tester,0.1MΩ~200GΩ/2500V/DAR/PI Megger,
MEWOI4480A Insulation Resistance Tester,0.1MΩ~200GΩ/2500V/DAR/PI Megger,

MEWOI4480A Insulation Resistance Tester,0.1MΩ~200GΩ/2500V/DAR/PI Megger,

2023-07-21 14:49:41  

0.1MΩ~200GΩ/2500V/DAR/PI Insulation Tester

  • Main Features : Suitable for measuring the insulation resistance, dielectric absorption ratio and polarization index of electric motor ,cable ,switch,electrical appliance and others electrical equipment and insulation materials. Insulation resistance tester:0.1MΩ~200GΩ Voltage range:AC/DC 0V~750V Rated voltage:2500V Short circuit current:≥2mA MAX
  • Serial No. :

Contact Us For QuotationEmail:  464560351@qq.comWhatsapp&Wechat:+8618620373879


MEWOI4480A series Insulation Resistance Tester, also known as megohm meter, insulation resistance tester, for insulation resistance testing. This instrument is a high performance digital type instrument, with LCD large screen with backlight display, data hold, automatic discharge, automatic shutdown and other functions. The instrument has the functions of test timing and voltage monitoring. When the loop voltage is higher than 36V, the instrument will forbid tested to protect the safety of the tested objects and personnel. The  instrument easy to operation, insulation resistance value, test time and output voltage display with the same screen, also have the test functions of dielectric absorption ratio test (DAR), polarization index test(PI), AC voltage testing. This series instrument maximum output voltage 5000V, the biggest test resistance value 400GΩ, maximum short-circuit current 2mA.

MEWOI4480A series Insulation Resistance Tester complete appliance is beautiful, wide range, high precision, high resolution, easy to operate, convenient to carry, accurate and reliable, stable performance, strong anti-interference ability. And with the shockproof, dustproof, moisture-proof structure, which is the telecommunication, the electric power, the meteorology, the computer room, the oil field, the mechanical and electrical installation and the maintenance and uses the electric power as the industrial power or the energy industry enterprise department commonly used but essential instrument. It is suitable for measuring the resistance of various insulating materials and the insulation resistance of transformers, motors, cables and electrical equipment.





Insulation resistance test, AC/DC voltage test

Power Supply

DC 1.5V LR14X6PCS dry battery continues stand by above 100h

Rated Voltage


Insulation Resistance Range


Voltage Range

AC/DC 0V~750V

Shout Circuit Current

≥2mA MAX

Max Capacitive Load


DielectricAbsorptionRatioTest (DAR)


Polarization Index Test(PI)



Turn the shift rotary knob to select the appropriate gear


Controllable off-white backlight, suitable for dark places

Display Mode

4 digital LCD display, contrast clear

Measurement indication

LED flicker and buzzer ring in measurement

LCD Size


Meter Dimension


Test Wires

High voltage bar test wire:Red 1PCS;Probe test wire:Black 1PCS;Alligator clip test wire:1PCS;Alligator clip:1PCS

Test Time

The single test time is 1 min. During the test, the user can stop automatically or automatically stop after 1 min, and the screen display measurement data

Battery Voltage

Battery voltage symbol display, when battery voltage is low will remind to replace the battery in time

Automatic Discharge

Automatic release the voltage of the measured object, During discharging, symbol flash. Discharge completion symbol extinguish

Auto Shutdown

15 minutes after boot up, the meter shuts down automatically without any operation

Power Consumption

Standby: about 40mA(backlight off);Start up with backlight:about 50mA;Measurement:about 100mA(backlight off)



Working Temperature and Humidity

-10℃~40℃;below B29880%rh

Storage Temperature and Humidity

-20℃~60℃;below 70%rh

Suitable Safety Standard

IEC61010-1(CATⅢ 300V、CAT IV 150V、Pollution 2)

Selection Guide

ModelMax Rated Voltage Insulation Resistance RangeVolatage Range

Packing Details


Outer Package


Inner Package

Tool bag




High voltage rod

1pcs red

Pen probe test wire

1pcs black

Alligator clip test wire

1pcs black

Alligator clip


Manual, certification, warranty card



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