OWON CMS101 20A-1000A Smart AC/DC Clamp Meter and Oscilloscope
The OWON CMS101 is a compact 2-in-1 clamp meter and oscilloscope, combining 1000 A AC/DC measurement with a 1 MHz bandwidth scope. It features a bright 2.8" display, true-RMS accuracy and 5 MSa/s sampling for reliable diagnostics. Ideal for electricians and field technicians needing powerful portable test capability.
OWON CMS101 – Advanced 2-in-1 Clamp Meter & Portable Oscilloscope
The OWON CMS061 is a versatile 2-in-1 handheld instrument that combines a True-RMS digital clamp meter with a 1 MHz mini oscilloscope, delivering exceptional flexibility for electrical diagnostics, field service, industrial maintenance, and on-site troubleshooting. Designed for professionals who need reliable measurements without carrying multiple tools, the CMS061 offers a wide measurement range up to 1000 A AC/DC, 1000 V AC/DC, and a real-time sampling rate of 5 MSa/s for capturing waveform details accurately.
Its 2.8-inch color display provides crisp numerical readings and clear oscilloscope traces, while built-in Bluetooth enables wireless monitoring and data logging via a mobile device. The CMS061 runs on a replaceable 18650 lithium battery, offering long operating time with fast USB-C charging. Lightweight and durable, it is engineered for demanding environments where precision, portability, and multifunction capability are essential.
Beyond its measurement capabilities, the meter includes Bluetooth connectivity, enabling wireless monitoring, data logging, and trend analysis via a mobile app—perfect for remote work, documentation, and safety-critical environments. Powered by a long-lasting 18650 lithium battery and charged via USB-C, the device offers extended operation time and fast, convenient charging in the field.
OWON CMS061 Key Features
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2-in-1 Instrument: True-RMS clamp meter combined with a 1 MHz handheld oscilloscope
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Wide Current Range: Measures up to 1000 A AC/DC with high accuracy
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High Voltage Capability: Up to 1000 V AC/DC measurement
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Real-Time Sampling: 5 MSa/s oscilloscope sampling rate for accurate waveform capture
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Bandwidth: 1 MHz (voltage) / 1 kHz (current) oscilloscope bandwidth
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True RMS Measurement: Accurate readings even on non-linear loads
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NCV (Non-Contact Voltage) Detection: Fast identification of live wires
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Automatic & Manual Ranging: Flexible operation for any measurement scenario
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Inrush Current Measurement: Capture startup surges on motors and power supplies
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Frequency & Duty Cycle Measurement: Wide input frequency range up to 20 MHz
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Large 2.8" Color Display: Clear graphical and numerical interface
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Bluetooth Connectivity: View, record, and export data via smartphone app
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Rechargeable 18650 Battery: Up to ~18.5 hours of runtime; USB-C charging
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Lightweight Design: Approx. 340 g for easy field portability
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Safety Rated: CAT III 1000 V / CAT IV 600 V safety compliance
Application Example
The OWON CMS061 and CMS101 are ideal for professionals who need both electrical measurement and waveform diagnostics in one portable tool. They are widely used by field service technicians, electricians, maintenance engineers, solar/PV installers, automotive technicians, and electronics service personnel.
These units are designed for tasks such as checking motor currents, diagnosing inverter and drive systems, viewing voltage waveforms, and verifying power quality. The built-in oscilloscope makes it easy to spot irregular signals, harmonics, or ripple without setting up bench equipment.
Typical applications include measuring inrush current on motors and compressors, monitoring inverter outputs, detecting wiring issues with NCV, verifying sensor and control signals, and performing full electrical checks (V/A/Ω/Hz/Cap). Bluetooth connectivity enables remote viewing and data logging, making it well suited for long-term monitoring or working in tight or hazardous spaces.
Compact, safe, and versatile, the CMS series is intended for anyone who needs fast, accurate diagnostics in the field with a single multifunction instrument.
| Specification | OWON CMS061 | OWON CMS101 |
|---|---|---|
| Clamp Current Range (AC/DC) | 20 A / 200 A / 600 A | 20 A / 200 A / 1000 A |
| Maximum Voltage (AC/DC) | Up to 1000 V | Up to 1000 V |
| True RMS / Resolution | True RMS, 20,000 counts | True RMS, 20,000 counts |
| Frequency Measurement Range | 200 Hz – 20 MHz | 200 Hz – 20 MHz |
| Capacitance Range | 2 nF – 20 mF | 2 nF – 20 mF |
| Oscilloscope Bandwidth (Voltage / Current) | 1 MHz / 1 kHz | 1 MHz / 1 kHz |
| Oscilloscope Sample Rate | 5 MSa/s (real-time) | 5 MSa/s (real-time) |
| Maximum Sample Current (Scope) | 600 A peak | 1000 A peak |
| Display | 2.8" color LCD | 2.8" IPS color LCD |
| Bluetooth & App Support | Bluetooth, iMeter app (Android / iOS) | Bluetooth, iMeter app (Android / iOS) |
| Safety Rating | CAT III 1000 V, CAT IV 600 V | CAT III 1000 V, CAT IV 600 V |
| Dimensions (L × W × D) | 233 × 94.5 × 37.8 mm | 248 × 94.5 × 37.8 mm |
| Weight | ≈ 0.34 kg | ≈ 0.35 kg |
| Clamp Jaw Opening | ≈ 38 mm | ≈ 38 mm |
Accessories included:
- Test probe set
- USB Type-C charging/data cable
- Quick start guide
