MarMonix MCA204 Clamp Meter – 4000 Counts True RMS Clamp Multimeter
MarMonix MCA204 is a True RMS digital clamp meter with 4000 counts LCD. It measures AC/DC voltage and current, resistance, frequency, capacitance, duty cycle, temperature, inrush current, NCV, diode, and continuity. Includes flashlight, backlight, data hold, auto power-off, and CAT III 600V safety rating.
MarMonix MCA204 Clamp Meter | AC/DC Voltage, Current, Resistance & Inrush Measurement
The MarMonix MCA204 Clamp Meter is a smart, compact, and highly functional multimeter with an extremely simple panel and integrated flashlight/backlight. Designed for students, technicians, and professionals, it supports AC/DC voltage, AC current, resistance, frequency, capacitance, duty cycle, diode, continuity, and temperature measurements.
With its True RMS accuracy, inrush current, and peak hold functions, the MCA204 provides reliable performance for both residential and industrial applications. Its ergonomic size, strong safety compliance (CAT III 600 V), and wide measurement ranges make it an essential tool for maintenance and troubleshooting.
MarMonix MCA204 Clamp Meter Key Features
Before exploring the full specifications, it’s important to note that the MCA204 Clamp Meter is designed for accuracy, versatility, and ease of use:
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4000 counts LCD display with backlight for clear visibility
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True RMS measurement for accurate AC readings
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Measures AC/DC voltage up to 600 V and AC current up to 600 A
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Capacitance range up to 4 mF and frequency up to 1 MHz
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Temperature measurement from –30 °C to +1000 °C (–22 °F to 1832 °F)
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Inrush current & peak hold functionality
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NCV detection for live wire safety checks
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Compact design: 172 × 64 × 32 mm, portable and lightweight
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Safety rating: CAT III 600 V for professional use
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Extra functions: data hold, auto power-off, low battery alert, flashlight
MarMonix MCA204 Clamp Meter Specifications
| Function | Range | Accuracy |
|---|---|---|
| DC Voltage | 400 mV / 4 V / 40 V / 400 V / 600 V | ±(0.8%+3) |
| AC Voltage | 400 mV / 4 V / 40 V / 400 V / 600 V | ±(1.2%+3) |
| AC Current | 40 A / 400 A / 600 A | ±(2.5%+5) |
| Resistance | 400 Ω / 4 kΩ / 40 kΩ / 400 kΩ / 4 MΩ / 40 MΩ | ±(0.8%+3) to ±(1.5%+3) |
| Capacitance | 40 nF / 400 nF / 4 μF / 40 μF / 400 μF / 4 mF | ±(6.0%+5 to 20) |
| Frequency | 40 Hz / 400 Hz / 4 kHz / 40 kHz / 400 kHz / 1 MHz | ±(0.1%+2) |
| Temperature | –30 °C to +1000 °C / –22 °F to +1832 °F | ±(2.5%+5) |
| Duty Cycle | 1% – 99% | ±(0.1%+2) |
| Diode/Continuity | Yes | — |
| Inrush Current | Yes | — |
| NCV Detection | Yes | — |
| Display | 4000 counts LCD with backlight | |
| Power Supply | Battery operated | |
| Dimensions | 172 × 64 × 32 mm | |
| Safety Rating | CAT III 600 V | |
MarMonix MCA204 Clamp Meter Applications
The MarMonix MCA204 Clamp Meter is suitable for:
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Electrical maintenance: voltage and current checks in industrial and residential setups
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HVAC systems: temperature, resistance, and continuity verification
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Automotive diagnostics: battery, alternator, and inrush current tests
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DIY and educational labs: safe learning with professional-grade functions
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Construction and field service: fast NCV detection and troubleshooting
Contents of the MarMonix MCA204 Clamp Meter box
- MCA 204 Main Device
- Premium Test Leads
- Insulated Alligator Clips
- Thermocouple Type-K Probe)
- Quick Start User Guide
- Durable Carry Case

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