£250.80

It has never been this cheap. We have no record of a lower price.

£251 today · cheaper than every other day in the last 3 months

Extech MG310 Digital Insulation Tester - 250/500/1000V

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Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 18 days · 18 data points (no recent data)

Historical
Generating forecast…
£250.80 £238.26 £243.28 £248.29 £253.31 £258.32 £263.34 23 July 2026 27 July 2026 31 July 2026 04 August 2026 09 August 2026
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Green, MG310

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Price Distribution

Price distribution over 18 days • 1 price levels

Days at Price
18 days 0 5 9 14 18 £251 Days at Price

Price Analysis

Most common price: £251 (18 days, 100.0%)

Price range: £251 - £251

Price levels: 1 different prices over 18 days

Description
The Extech MG310 is a compact insulation resistance tester designed for quick and easy troubleshooting of motors, transducers, and industrial appliances. This versatile tool provides wide range measurements up to 1000V with insulation resistance reaching 5.5G-ohm. It features a large 2000 count dual display with a backlight for clear reading in various lighting conditions. Designed for portability and protection, the MG310 includes a snap-on hard cover and a soft pouch to keep your meter and accessories safe during transport to job sites. Safety is a priority with built-in auto-discharge and voltage output warnings, along with high voltage and overload indications. Whether you need polarization index (PI) or dielectric absorption ratio (DAR) measurements, this tester delivers reliable performance for electrical maintenance and testing.

Key Features

Test various voltage levels including 250V, 500V, and 1000V for comprehensive insulation resistance testing.

Measure insulation resistance up to 5.5G-ohm with an auto-ranging function for precision and ease of use.

Perform advanced diagnostics with Polarization Index (PI) and Dielectric Absorption Ratio (DAR) measurement capabilities.

Monitor AC voltage from 30 to 600V while utilizing the continuity beeper and low resistance measurement with Zero function.

View data clearly on a large 2000 count dual display that includes a backlight for low-light environments.

Protect your equipment with an included snap-on protective hard cover and a soft pouch for convenient job site transport.

Stay safe during testing with integrated auto-discharge, voltage output warnings, and high voltage or overload indications.

Product Specifications
Brand
Extech
Model
MG310
Colour
Green
ASIN
B01D30Z5BC
Category
DIY & Tools > Electrical > Tools & Testers > Multi Testers
Domain
Amazon UK
Release Date
06 July 2017
Listed Since
20 May 2016

Barcode

No barcode data available

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