Finding a feature-packed digital clamp meter that handles both heavy industrial loads and precision electronic testing—without breaking the bank—is a challenge. The ZIBOO 393 Digital Clamp Meter attempts to fill that gap.
Priced at around $59, this 6000-count True-RMS (TRMS) meter offers features usually reserved for premium brands: 1000A AC/DC current, 1700V DC high voltage range, Inrush Current, Low Z, and VFD motor testing.
In this review, we analyze the build quality, bench test results, and overall value of the ZIBOO 393.
ZIBOO 393 vs. ZIBOO 376 Comparison
ZIBOO offers two models in this series:
| Feature | ZIBOO 393 (Reviewed) | ZIBOO 376 |
| Price | ~$59 | ~$49 |
| Max DC Voltage | 1700V DC | 1000V DC |
| Max AC Voltage | 1000V AC | 1000V AC |
| Max Current | 1000A AC/DC | 1000A AC/DC |
| Temperature Function | Yes (℃ / ℉) | No |
| Key Features | Low Z, Inrush, VFD, NCV | Low Z, Inrush, VFD, NCV |
Key Features & Bench Test Performance
1. High Current & Voltage Ratings (1000A / 1700V)
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1000A DC Current Test: Using a 1000-turn multiplier coil, the 393 smoothly measured 1000A DC and slightly over.
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1700V DC Capability: Higher than standard 1000V meters, making it ideal for Solar PV installations and high-voltage DC systems.
2. Low Z & VFD Modes
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Low Z (Low Impedance): Reduces input impedance to 1MΩ to eliminate false readings from ghost voltages.
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VFD (Variable Frequency Drive): Features a low-pass filter to block high-frequency noise created by motor controllers.
3. Inrush Current Measurement
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Captures short startup surge spikes from motors or HVAC compressors that standard AC/DC current modes miss.
4. Basic Electrical Measurements
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DC Voltage Precision: Tested accurate against reference sources from 100mV up to 10V DC.
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Diode Test: 3.95V open-circuit voltage easily illuminates LEDs (Red, Green, Blue, White).
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Capacitance & Resistance: Successfully measured capacitors up to 10,000µF.
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NCV & Live Line: Sensitive non-contact voltage detection and single-probe live line checks.
Pros and Cons
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Pros:
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Excellent value ($59 for 1000A & 1700V DC)
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Large, bright backlit LCD display
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Solid build with large jaw capacity for thick wiring
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Inrush, VFD, and Low Z functions included
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Cons:
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Stock test leads lag slightly during continuity testing (upgrading probes resolves this)
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Difficult to open for internal teardowns without risking damage
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Final Verdict
The ZIBOO 393 Clamp Meter is a highly capable tool for electricians, solar power installers, and electronics hobbyists. Delivering 1000A current capacity and 1700V DC measurement for under $60, it provides incredible performance per dollar.
Review based on bench testing by JazzTech Electronics.