Megger MIT310 Insulation and Continuity Tester

  • Insulation tests at 250, 500 and 1000 volts
  • Continuity to 100 Ω with rapid buzzer tone
  • Insulation range 0.01 to 999 MΩ coverage
  • CAT III 600 V safety rating with IP54 build
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Express Delivery is currently unavailable for customers wishing to add calibration to their New Goods order. For more information, visit our Delivery Information page. 

£377.00 (ex VAT)

£452.40 (inc VAT)

Earn 377 points

In Stock - Express Delivery Available
  • Insulation tests at 250, 500 and 1000 volts
  • Continuity to 100 Ω with rapid buzzer tone
  • Insulation range 0.01 to 999 MΩ coverage
  • CAT III 600 V safety rating with IP54 build
Free Shipping

Spend over £100 on any new goods order and receive automatic free shipping

Rewards

Points make purchases! For every £1 spent, earn back 1p that can be spent on any future new goods purchase

Our Price Promise

We offer a Price Match Promise! Find an equivalent tester for a cheaper price on a competitor site, and we’ll do our best to match it

Express Delivery & Calibration

Express Delivery is currently unavailable for customers wishing to add calibration to their New Goods order. For more information, visit our Delivery Information page. 

£377.00 (ex VAT)

£452.40 (inc VAT)

Earn 377 points

In Stock - Express Delivery Available
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Megger MIT310 Insulation and Continuity Tester gives fast checks on fixed wiring with simple controls and clear feedback. It suits daily work on domestic and commercial sites where speed and safety matter. You read values on a crisp digital display with an analogue arc that helps you judge trends. You move between tests without fuss and keep a steady pace on every board.

Precision and safety

You apply 250 V, 500 V or 1000 V insulation tests across a wide resistance range and see steady results. You also run continuity tests with a strong test current that proves low resistance bonds with confidence. Live warning and test inhibit protect you from unsafe starts on energised circuits. A default voltmeter wakes when it senses voltage so you can verify conditions before you proceed.

Built for site work

You carry a tough, rubber-armoured unit with weather protection for dusty plant rooms and busy risers. You hang it with the strap for hands-free use and keep moving while the auto power save preserves batteries. Automatic discharge after insulation tests helps you finish safely. Clear prompts guide you so you stay focused on the job.

You can store the kit in the supplied hard case and keep leads tidy between jobs. You also receive a calibration certificate for compliance needs. The three year warranty backs long service in the field. This keeps downtime low and makes the tester a reliable choice for maintenance teams and installers.

pdf

Megger MIT310 Insulation and Continuity Tester gives fast checks on fixed wiring with simple controls and clear feedback. It suits daily work on domestic and commercial sites where speed and safety matter. You read values on a crisp digital display with an analogue arc that helps you judge trends. You move between tests without fuss and keep a steady pace on every board.

Precision and safety

You apply 250 V, 500 V or 1000 V insulation tests across a wide resistance range and see steady results. You also run continuity tests with a strong test current that proves low resistance bonds with confidence. Live warning and test inhibit protect you from unsafe starts on energised circuits. A default voltmeter wakes when it senses voltage so you can verify conditions before you proceed.

Built for site work

You carry a tough, rubber-armoured unit with weather protection for dusty plant rooms and busy risers. You hang it with the strap for hands-free use and keep moving while the auto power save preserves batteries. Automatic discharge after insulation tests helps you finish safely. Clear prompts guide you so you stay focused on the job.

You can store the kit in the supplied hard case and keep leads tidy between jobs. You also receive a calibration certificate for compliance needs. The three year warranty backs long service in the field. This keeps downtime low and makes the tester a reliable choice for maintenance teams and installers.

Key features
  • Runs insulation and continuity checks in one compact unit for faster workflows
  • Shows results on a digital display with an analogue style arc for quick trend reading
  • Acts as a voltmeter when it detects live voltage so you can verify before testing
  • Warns on live circuits and blocks unsafe tests which supports safe isolation practice
  • Uses a strong continuity test current for confident bonding checks on low resistance runs
  • Gives a fast continuity buzzer that speeds up fault finding on large boards
  • Lets you null test leads so small resistance is removed from your reading
  • Locks the test button so you can keep a steady hold while recording values
  • Saves batteries with automatic power down during idle periods on site
  • Works in tough spaces with a rubber-armoured case and IP54 protection
  • Hangs on a neck strap for hands-free operation in cramped panels
  • Ships with a calibration certificate that supports audit and compliance checks

 

Technical specifications

 

Model MIT310
Manufacturer Megger
Manufacturer part code MIT310-EN
Insulation test voltages 250 V, 500 V, 1000 V DC
Insulation measuring range 10 kΩ to 999 MΩ on all ranges
Insulation accuracy (20 °C) ±3% ±2 digits to 10 MΩ, ±5% to 100 MΩ, ±30% to full scale
Continuity measuring range 0.01 Ω to 99.9 Ω auto-ranging
Continuity open-circuit voltage 5 V ±1 V
Continuity short-circuit current 205 mA +10 mA −5 mA
Continuity buzzer threshold Operates at < 5 Ω
Lead null Adjustable 0 to 9 Ω
Voltage measurement 0 to 600 V AC (50/60 Hz) or DC
Voltage accuracy (20 °C) ±1% ±2 digits
Default voltmeter Display becomes a voltmeter when >25 V is present
Test inhibit Prevents testing when circuit voltage >50 V
Automatic discharge Discharges the item under test after insulation tests
Display Digital LCD with analogue arc
Safety category IEC 61010 CAT III 600 V
Enclosure protection IP54 weatherproof
Power supply 8 × AA cells, alkaline or rechargeable NiCd/NiMH
Battery life Approx. 5000 tests of 5 seconds each
Fuse 500 mA (F) 600 V, 32 × 6 mm ceramic HBC 10 kA minimum
Operating temperature −10 °C to +60 °C
Operating humidity Up to 93% RH at +40 °C
Dimensions 203 × 148 × 78 mm
Weight Approx. 980 g
Included documents Calibration certificate
Warranty Three years for MIT300 series instruments
pdf
What’s included
  • Instrument
  • Test lead set with crocodile clips
  • Hard carrying case
  • Manufacturer’s calibration certificate

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