Insulation is tested as a quality control measure at the time a piece of electrical equipment is produced. Checking insulation can also be an installation requirement to help ensure specifications are met and to verify proper hookup. So check out this list of 10 best Digital Insulation testers and let us know your favourite insulation tester in the comments section below.
Victor Digital Insulation Tester 1000v Vc60b(49$)
Has a measuring voltage of up to 250V. The meter has two ranges, first from 0.1Mohm to 20Mohm second from 0 to 500Mohm.The meter has an accuracy of +- 4%.
You can get one here
Honeytek A60B Insulation Tester(60$)
This digital insulation testers has multiple test voltages 100V±10%; 250V±10%; 500V±10%; 1000V±10%. The Resistance range is from 0.1M to 2000M. Judging by the stats and information this looks like a solid Insulation tester.
You can get one here
Docooler Digital Insulation Tester Meter (123$)
If the previous two were low key than this one is certainly an upgrade as it has a voltage range from 250V to 2500V. Able to measure DC/AC voltage, resistance and perform continuity and insulation test. The device also has an insulation test lock.
You can get one here
Victor VC 60E(157$)
This model from Victor can have measuring voltages up to 5000V. The meter also has an alarm function, a red indicator light is illuminated along with Auto OFF.
You can get one here
New DY5106A Digital Insulation Resistance Tester Meter Voltmeter Megohmmeter 5000V(167$)
Six test voltages cover 100V, 250V, 500V, 1000V, 2500V, 5000V for flexible application. It measures insulation resistance to 200G with 0.01m resolution. The meter also has added features such as data hold, auto range, auto power off & LCD background light.
You can get one here
Mastech MS5208 6600(170$)
This a high-level insulation tester with almost the same specifications as No.6 but the key difference being that this model can double as a multimeter as well.
You can get one here
UNI-T UT-521 Digital Earth Tester Earth Ground Insulation Resistance Meter(245$)
This meter has a digital count of 2000 and is suitable to check for “earth”. It can measure earth Resistance at various ranges ranging from (?): 20? ±(2%+10) ; 200? ±(2%+3) ; 2000? ±(2%+3) & AC Earth Voltages (V)from 0 to 200V ±(1%+4).
You can get one here
UEI Test Equipment Dmeg3 (245$)
Large digital display shows the test function and measured value – 600V AC measurement capability. Insulation resistance ranges 0 – 2000M?v. Three test voltage ranges (250, 500, 1000V DC).
You can get one here
Amprobe AMB-25 Digital Insulation Resistance Tester(288$)
Insulation resistance meter to test insulation of wires, cables, transformers, and electrical motors.Digital meter with automatic range selection.Internal memory stores up to 9 test results & measures insulation resistance from 0 to 1,000 megaohms with 250, 500, and 1,000V DC test voltage.
You can get one here
Fluke 1587 Insulation Multimeter(700$)
One of the best insulation testers out there. Insulation test voltages of 50, 100, 250, 500, and 1000V and insulation measurement range of 0.01 megohms to 2 gigohms. Low-pass filter blocks unwanted voltages when measuring AC voltage and AC frequency to provide accurate measurements.
You can get one here
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