Description
Hioki CM4371-50 Clamp Meter – Smart Power, Safe Measurements
The Hioki CM4371-50 AC/DC Clamp Meter is designed to deliver accurate, reliable measurements even in the toughest industrial environments. Combining True RMS precision, wireless connectivity, and multi-functional versatility, it’s an essential tool for professional electricians and engineers who demand performance and safety in one compact device.
Precision in Every Measurement
This high-performance clamp meter measures up to 600 A AC/DC with True RMS accuracy, ensuring dependable readings for both pure and distorted waveforms. It can measure DC voltages up to 2000 V when paired with the optional DC High Voltage Probe P2010, making it ideal for high-voltage solar installations and advanced inspection tasks.
Wireless Connectivity for Smarter Workflows
When equipped with the Wireless Adapter Z3210, the CM4371-50 connects seamlessly to the GENNECT Cross app, enabling wireless data transfer, instant report generation, and real-time analysis on smartphones or tablets. Data can also be exported directly to Excel® templates for faster reporting and documentation.
Advanced Harmonic and Inrush Analysis
With harmonic measurement capability up to the 30th order, this meter helps diagnose power quality issues such as overheating, malfunctioning devices, and energy loss. It also accurately measures inrush currents in both RMS and crest values, capturing transient events during motor starts or welding operations.
Designed for Safety and Durability
Engineered with CAT IV 600 V and CAT III 1000 V ratings, the CM4371-50 ensures maximum safety during high-voltage inspections. Its rugged construction, automatic hold function, and backlit display make it ideal for fieldwork in low-light or confined environments.
The Hioki CM4371-50 Clamp Meter is more than just a testing tool—it’s a complete diagnostic solution designed for modern energy systems, helping professionals work safer, smarter, and faster.
Technical Specifications Table
| Parameter | Details |
| Model | Hioki CM4371-50 AC/DC Clamp Meter |
| Measurement Type | True RMS, AC/DC |
| AC Current Range | 20.00 A / 600.0 A (10 Hz – 1 kHz) |
| DC Current Range | 20.00 A / 600.0 A |
| Voltage Range (DC/AC) | Up to 1000 V (2000 V with P2010 probe) |
| Resistance Range | 600.0 Ω to 6.000 MΩ |
| Capacitance Range | 1.000 μF to 1000 μF |
| Frequency Range | 9.999 Hz to 999.9 Hz |
| Temperature Range (K Type) | -40.0°C to 400.0°C |
| Harmonic Analysis | 1st to 30th order (with Z3210 and GENNECT Cross) |
| Safety Rating | CAT IV 600 V / CAT III 1000 V |
| Wireless Connectivity | Bluetooth® (with optional Z3210) |
| Display Features | Auto hold, Max/Min/Avg/Peak, Backlight |
| Crest Factor | Up to 7.5 (20 A range) |
| Jaw Diameter | φ 33 mm |
| Power Supply | 2 × LR03 Alkaline batteries |
| Battery Life | Up to 40 hours (20 with wireless active) |
| Protection | IP20 (measurement), IP54 (storage) |
| Dimensions | 65 × 215 × 35 mm |
| Weight | 340 g |
| Included Accessories | Test Lead L9300, Carrying Case, Batteries, Manual |
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