The test voltage must match the circuit, not the other way round · review
Five test voltages from 50 to 1000 V and an insulation range reaching 20 GΩ — five times the ceiling of the PeakTech — with low-resistance measurement from 0.01 Ω.
What the figures leave us with The widest span here, from 50 V to 1000 V and up to 20 GΩ. The absent category rating is the gap.
Five test voltages and the widest measuring window in this hub.
Test voltages of 50, 100, 250, 500 and 1000 V. Insulation resistance measurement up to 20 GΩ. Resistance measurement from 0.01 Ω to 20 kΩ.
Fifty volts exists for equipment that 500 V would destroy. Twenty gigohms exists so that good insulation produces a reading instead of an over-range symbol — and a reading is what lets you compare this month against last month, which is how insulation is actually monitored.
At the other end, 0.01 Ω resolution is the continuity range: verifying that a protective conductor is genuinely connected, which is a measurement in fractions of an ohm.
No measurement category. On an instrument that applies 1000 V and is used on fixed installations, that is the specification a buyer most needs, and it is in the documentation rather than the listing.
Catalogued and unsold: the American Amazon shop lists the reference with nobody behind it.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
| Amazon reference | DE B017REY926 · US B07HQ66G5Q · FR B07HQ66G5Q · IT B017REY926 · ES B07HQ66G5Q |
|---|---|
| EAN | 4016138952742 |
| Insulation test | 50 / 100 / 250 / 500 / 1000 V · insulation to 20 GΩ |
| Functions | resistance 0.01 Ω–20 kΩ |
Circuits and components that a higher test voltage would damage — control electronics, low-voltage systems, sensitive equipment. It is the lowest step among the testers here and the only one at that level.
It is a high ceiling, which means healthy insulation gives a number rather than an over-range indication. Watching that number over time is how insulation degradation is spotted before it fails.
Continuity of a protective conductor is a low-resistance measurement — fractions of an ohm. A tester that resolves to 0.01 Ω can make it; one that reads to the nearest ohm cannot.
7.5/ 10
The widest span here, from 50 V to 1000 V and up to 20 GΩ. The absent category rating is the gap.
A reference exists on these Amazon stores: France, Germany, Italy, Spain, United States. Listed is not the same as in stock — availability changes daily.
Details checked on August 31, 2026.
Testing across a wide span of equipment, from electronics at 50 V to fixed wiring at 1000 V.
Specifications: the manufacturer sheet for measuring instruments and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
500 and 1000 V test · 600 MΩ · combined insulation tester and multimeter
A combined insulation tester and digital multimeter with 500 V and 1000 V test voltages and a 600 MΩ range, at the top of this hub by a factor of four.
Best for: Carrying one instrument instead of two, in a trade where that trade-off is worth the price.
≈ $799
Insulation resistance · multiple ranges · manual selection · backlit LCD
The entry point into insulation testing: a megohmmeter with several selectable ranges, manual measurement modes and a large backlit display.
Best for: Learning what an insulation test looks like, on equipment that is disconnected and safe to experiment on.
125 / 250 / 500 / 1000 V test · 0–4000 MΩ · CAT III 1000 V · dual display
Four selectable test voltages from 125 to 1000 V, insulation measurement to 4000 MΩ, continuity, AC and DC voltage — and a stated CAT III 1000 V rating.
Best for: Installation work where the test voltage has to match the circuit and the category has to be known.
