PRO 7275A 20A Digital Microohms Meter

101,303.00 including GST @18%

20A MicroOhms Meter with Touchscreen, Rechargeable Battery, IP65 protection, USB Interface, Bluetooth, Alarm function and built-in monitoring software.

Availability: Out of stock Categories: , ,



The Metravi Pro 7275A 20A MicroOhms Meter is used for measuring Transformer Winding Resistance; Grounding Continuity Resistance; Cable & Conductor Resistance; Contact Resistance of Switches, Connectors and Relays; Metal Riveting Resistance; Winding Resistance of Coils, Motor and a T; Connection Resistance between Metal Components; Welding Point Resistance; Battery Parallel Connection Resistance; Wire Length Measurement and Calculations, etc. 


  • The tester is controlled by a high-speed, single-chip microcomputer, with fast response speed, stable measurement and easy operation.
  • With two measurement modes. Automatic Mode: the test current can be automatically selected according to the load. Manual Mode: 7 gears test currents can be chosen: 20A, 10A, 1A, 100mA, 10mA, 2mA and 1mA.
  • Also equipped with a 480×854 true colour LCD touchscreen, which is clearly visible even under bright light and can be operated by using both touchscreen or panel buttons.
  • A large capacity, rechargeable, lithium battery and a waterproof case make the devices suitable for outdoor use.
  • With Bluetooth communication function, it can run test operations or enable viewing test result on a mobile phone using the free Smartphone App.
  • Additionally, the tester features USB interface and built-in monitoring software, which can communicate with the computer. 
  • The protection function is perfect and reliably protects the impact on the back EMF on the instrument, making the performance more reliable.
  • With the discharging function, automatically discharge after tests and avoid any mis-operation.
  • Converting resistance function compensates for the resistance change due to the heat generated and compensates for the temperature of the test product.
  • Alarm function: the resistance alarm value can be set.
  • Automatic shutdown: the tester automatically shuts down after 15 minutes of non-operation.

Additional information






Battery Capacity

7.4V, 7800mAh

Battery Type

Rechargeable, Lithium

Battery Savers

Automatic Shutdown After 15 mins of Non-operation

Low Battery Indication

Method of Measurement

2-Wire Method, 4-Wire Method

Automatic Shutdown

after 15 mins. of non-operation

Measurement Mode

Automatic mode, Manual mode

Resistance Range

, , , , , , , , , ,

Resistance Resolution

0.1Ω, 1Ω, 0.01kΩ, 0.1uΩ, 10mΩ, 10uΩ, 1mΩ

Test Current

1mA, 100mA, 10A, 1A, 20A, 2mA, Automatic

Sampling Rate

1 per second

Charge Indication

green when fully charged, red when charging


, ,

Data Hold

Auto Power Off

Memory and Storage

600 groups

Alarm Critical Value

1mΩ to 2500Ω


Alarm is issued if measured value exceeds alarm set value

Working Temperature

-10°C ~ 40°C, below 80%RH

Storage Temperature Range


Resistance Accuracy


Dust & Water Proof




7 Current Gears

Clock Function

Clock Function

Discharge Function

Automatic discharge after testing

Protection Level



2 Test Wires, Charge, Insulated Tool Bag, Temperature Sensor, Tester, USB Communication Cable

  • Measurement Method: Precision 4-wire method, 2 channel AID detecting simultaneously
  • Measurement Modes: Automatic Mode and Manual Mode
  • Measurement Range: 10.0uΩ ~ 50.00kΩ
  • Test Current: 20A, 10A, 1A, 100mA, 10mA, 2mA, 1mA, Automatic.
  • Temperature Measurement: Range: -55°C ~ 125°C; Accuracy: ±0.5°C
  • Measurement Time: AD sampling rate 1 per second
  • Data Storage: 600 groups (data not lost after power failure or battery replacement)
  • Alarm critical value setting range; 1mW ~ 2500W
  • Alarm Indication: Display and Light
  • Test Indication
  • Charging Indication
  • Data Hold
  • Adjustable Backlight
  • Clock function
  • Conversion Resistance Calculation
  • Discharge function
  • Display: Backlit LCD
  • Automatic Shutdown
  • Overflow display
  • Low Voltage Indication
  • Protection: IP65 (with closed case)
  • Interface: USB and Bluetooth
  • Dielectric Strength: AC 3700V/RMS (between the shell and screw)
  • Safety Standards: IEC61010-1, CAT Ill 600V, Pollution Level 2 , JJG724-1991 (Verification Regulation Of D.C. Digital Ohmmeter), JJG166-1993 (Verification Regulation Of D.C. Resistors), DL/967-2005
    (Verification Regulation of Loop Resistance Tester and DC Resistance High-speed Tester)


There are no reviews yet.

Be the first to review “PRO 7275A 20A Digital Microohms Meter”