Multimeters and clamp meters
Everyday electrical measurement you can trust.
- Fault finding on panels
- Load and current checks
- Commissioning
RangesFLIR DM and CM Series · Extech · Megger
Get a recommendation
Solutions / Electrical test
Power, Spoken.
Know what your insulation, earthing and supply are really doing, before a fault decides for you.
What it tells you
Some problems never trip a breaker.
Insulation
Resistance slips every season
A steady fall matters more than any single reading.
Earthing
Protection you cannot see
An earth that looked fine on handover can corrode and dry out.
Supply
Dips, harmonics and unbalance
They make motors, drives and cables work harder and run hotter.
Everyday
Panels and circuits
Fast, safe checks with the right category of meter.
What we supply
Product groups
Tell us the job and we will recommend the model. No price lists here: the right instrument depends on the site.
Insulation resistance testers
Catch failing insulation before it fails.
- Motors and generators
- Cables and switchgear
- Routine and acceptance tests
RangesMegger MIT Series, from handheld testers to 15 kV
Get a recommendation
Earth and ground testers
Prove your earthing really protects.
- Earth electrode resistance
- Soil resistivity
- Lightning protection checks
RangesMegger DET range
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Power quality analysers
See what the supply is really doing.
- Harmonics, dips and swells
- Unbalance and flicker
- Week-long logging
RangesMegger MPQ Series · Extech
Get a recommendationSome instruments need an export licence. We check before you order and tell you the timing.
Check a reading
Insulation result? Correct it to 40 °C.
Readings change with temperature, so compare like with like. Enter the reading and the winding temperature.
Insulation checkExample values
MΩ
°C
MΩ at 40 °C
- Correction factor
- —
- Minimum
- —
—
—
Corrected with resistance halving for every 10 °C rise, as IEEE 43 allows for a quick check. Guidance for trained people; follow your site's safety rules and the full standard.
How we help
Test the same way every time.
Choose
Voltages and methods
We help you pick test voltages, durations and methods for each asset.
Train
Read the results
We show your team how to correct, compare and trend the readings.
Explain
A week of data
We explain what a week of power quality logging is telling you.
Questions
Questions people ask
If yours is not on the list, ask us. No question is too basic.
Most sites test on a fixed schedule, such as once a year or at each planned outage. What matters is the same voltage, duration and connections every time.
Insulation resistance roughly halves for every 10 °C rise, so a warm motor reads lower. Correcting to 40 °C lets you compare tests fairly.
It depends on whether you want to diagnose a problem now or watch the supply over time. Tell us the symptom and we will suggest one.