Best Current Clamp for Oscilloscope: Top Picks for Accurate Measurements
Finding the right current clamp for oscilloscope work helps you extend your device’s measurement range, observe current waveforms clearly, and diagnose power electronics problems more efficiently. The picks below focus on clamps that pair well with oscilloscopes, offer clean BNC connectivity, and cover a wide bandwidth for both AC and DC currents. Each option provides reliable performance for testing motors, power supplies, converters, and other electronic systems. Use the Buying Guide at the end to compare specs and use cases across several scenarios.
Summary of chosen products:
- Hantek CC-65 AC/DC Multimeter Current Clamp Meter with BNC Connector Up to 20 kHz — 20 mA to 65 A
- Hantek CC-650 AC/DC Current Clamp — 400 Hz bandwidth, 650 A, BNC plug
- OWON CP024 AC/DC Current Probe for Oscilloscope — 200 kHz bandwidth, 4 A to 400 A
- HANMATEK CO601 3-in-1 Oscilloscope & AC/DC Clamp Meter — 1 MHz bandwidth, 600 A
- Hantek CC-65 AC/DC Current Clamp Transducer for Oscilloscope (BNC Type Connector)
Hantek CC-65 AC/DC Multimeter Current Clamp Meter
The CC-65 model provides AC/DC current measurement with a BNC connector for oscilloscope compatibility. It supports a bandwidth up to 20 kHz, suitable for common power electronics activities. It covers a measurement range from 20 mA to 65 A, enabling precise monitoring of small to medium currents in lab experiments. Use cases include motor drive testing, voltage converter analysis, and general power circuit troubleshooting. The clamp’s pairing with digital multimeters and oscilloscopes helps users observe current waveforms alongside voltage and other signals.
Hantek CC-650 AC/DC Current Clamp
This clamp features a wider bandwidth and higher current range, suitable for heavy-duty testing. With a 400 Hz bandwidth and an effective measurement range from 20 mA to 650 A DC, it supports accurate current waveform capture in power electronics, motor control, and energy systems. The BNC plug enables direct connection to oscilloscopes for real-time waveform visualization. It’s designed for use in lab benches and field service where robust current analysis is essential.
OWON CP024 AC/DC Current Probe for Oscilloscope
OWON’s CP024 current probe extends oscilloscope capabilities with a high bandwidth up to 200 kHz and a wide current range from 4 A to 400 A (and 0–40 A on some ranges). The clamp is designed for automotive and industrial testing, offering auto-zero at power on, low noise, and high-accuracy sensing. It uses a BNC connection for easy scope integration and supports non-contact measurements in a safe, non-invasive manner. This probe is well suited for observing fast switching in power supplies and motor controllers.
HANMATEK CO601 3-in-1 Oscilloscope & AC/DC Clamp Meter
The CO601 combines oscilloscope functionality with an AC/DC clamp meter, offering a 1 MHz bandwidth and 5 MS/s sampling rate. It supports measurements up to 1000 V and 600 A, along with resistance, capacitance, and diode tests. Features include non-contact voltage (NCV) detection and data logging with BLE, enabling waveform capture on a smartphone. This model is ideal when you need an all-in-one tool for on-site troubleshooting and lab analysis.
Hantek CC-65 AC/DC Current Clamp Transducer for Oscilloscope
This transducer converts current measurements for DMM and oscilloscope use, with a BNC-type connector for convenient oscilloscope integration. It enables precise current waveform observation when attached to a digital multimeter or oscilloscope, facilitating troubleshooting in power electronics, motor drive systems, and other current-sensitive applications. Its compatibility with BNC-equipped instruments makes it a flexible tool for lab benches.
Buying Guide: Key Purchase Considerations
- Bandwidth and current range: Higher bandwidth (kHz to 200 kHz) captures faster switching events, while broader current ranges (mA to hundreds of A) cover diverse applications from small sensor circuits to heavy drives.
- Connector compatibility: A BNC plug is common for oscilloscope integration; ensure your scope has the appropriate input and impedance for accurate readings.
- DC vs AC measurement: Some clamps are optimized for DC, others for AC; for power electronics with pulsed currents, a wide band AC/DC capable model is preferred.
- Additional features: Auto-zero, data logging, NCV detection, and Bluetooth/ULE data export can improve usability and analysis workflow in both lab and field environments.
- Form factor and usability: Clamp size and jaw design affect ease of use around tight conductors; consider probe length and weight for extended sessions.
When selecting a current clamp for oscilloscope work, balance the measured current range, bandwidth, and connection options with the intended application. For automotive or high-power electronics, clamps with higher current ratings and robust construction are advantageous. For benchtop experiments and quick measurements, compact clamps with decent bandwidth and simple USB or BLE data logging can streamline workflows. Consider pairing a clamp with a versatile oscilloscope or a digital multimeter to expand capabilities without sacrificing measurement accuracy.