Description
Digital Megohmmeter, Insulation Resistance Tester with AC DC Voltage Tester, Electrical Tester
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Stop guessing about insulation: this ohmmeter delivers precise resistance readings you can trust every time
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One tool instead of two: it measures AC and DC voltage from 10 to 600V alongside insulation resistance
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Read it anywhere: the HD backlit display stays clear up to 2000 counts in any lighting
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Track trends, not just one reading: store up to 100 measurements and calculate PI and DAR instantly
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Work hands-free on long tests: the back bracket holds it steady while the silicone case protects it on site
Unreliable insulation readings can turn into thousands of dollars in equipment damage and system failures down the line. This megohmmeter is built to close that gap: connect the leads, select a voltage range from 10 to 600V, and its circuitry analyzes insulation resistance while working to filter out measurement errors, so the number on the display is one you can act on.
As an everyday electrician tool, it doubles as a voltage meter and a circuit tester in the same handheld body, storing up to 100 readings with Polarization Index and Absorption Ratio calculations for a fuller insulation tester picture. Signal shield technology cuts down interference during testing, and as a voltage detector it comes with alligator clips, a signal shielding wire and precision test leads ready to go. As with any insulation-resistance tester, letting the circuit discharge before you disconnect the leads matters — this one automates that step for you.
Why choose Tuzwa
Digital Megohmmeter
| Feature |
Tuzwa |
Others |
| AC/DC voltage plus insulation testing |
✓ |
1 function |
| Stores 100 readings with PI/DAR |
✓ |
✕ |
| 2000-count HD backlit display |
✓ |
Dim, low-res |
| Silicone case, back bracket |
✓ |
No protection |
| Signal shield cuts interference |
✓ |
Varies |
| 30-day easy returns |
✓ |
Varies |
Key Features
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Complete Testing Suite: a single button takes care of both AC/DC voltage and insulation-resistance measurement.
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Advanced Data System: up to 100 measurements are stored with instant recall, along with PI and DAR calculations for deeper analysis.
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Protective Design: a silicone casing and back bracket add durability and let you work hands-free.
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Professional Accessories: alligator clips, a signal shield wire and precision test leads come along for accurate results.
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Interference Protection: signal shield technology works to eliminate measurement errors and cut electrical interference leakage.
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Premium Display: the high-definition, 2000-count backlit screen stays readable wherever you're working.
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Automatic Safeguards: auto discharge and continuous battery monitoring keep operation safe.
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Comprehensive Analysis: insulation quality, moisture effects and aging all get measured through detailed resistance testing.
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Power Management: automatic shutdown and battery monitoring help conserve charge between uses.
Specifications
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Display Type: HD Backlit LCD
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Resolution: 2000 Count
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AC Voltage Range: 10 to 600V
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DC Voltage Range: 10 to 600V
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AC Accuracy: ±(1%+5d)
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DC Accuracy: ±(0.8%+5d)
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Circuit Current: 1.8mA
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Storage Capacity: 100 Sets
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Body Material: Silica Gel/ABS
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Lead Material: PVC/Brass
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Safety Features: Auto Discharge
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Protection: Impact Resistant
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Analysis Functions: PI and DAR
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Data Functions: Hold and Store
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Testing Modes: AC/DC/Insulation
Package Includes:
- 1 x High Resistance Meter Voltage Tester Megohmmeter Tool
- 1 x Test lead
- 1 x Alligator clip
- 1 x Signal Shielding Wire
- 1 x Storage bag
- 1 x Instruction Manual
- 1 x Packing box
How to Use
Connect the specialized test leads, then select the voltage range you need before you begin measuring.
Right for you if
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✓You test insulation on the job — it measures AC/DC voltage 10-600V plus resistance in one tool
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✓You need to track results over time — it stores up to 100 measurements with PI and DAR
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✓You work in low light — the HD backlit display stays readable at 2000 counts
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✓You need both hands free during long tests — the back bracket holds it steady
If two or more of these sound like you, this is the one.
FAQs
Q: What voltage range does this electrical tester cover?
A: It measures both AC and DC voltage from 10 to 600V, alongside insulation resistance, through the same set of test leads.
Q: How many readings can this megohmmeter store?
A: Up to 100 measurements, with instant recall plus Polarization Index and Absorption Ratio calculations for deeper analysis.
Q: What accessories come with the voltage tester?
A: Alligator clips, a signal shielding wire, precision test leads, a storage bag and an instruction manual.
Q: Is it safe to use for extended insulation testing?
A: Yes — an auto discharge function and continuous battery monitoring are built in to support safe operation.
Q: Can I read the display in low light or a dim panel room?
A: Yes, the HD backlit, 2000-count screen stays clear in any lighting condition.
