Features 1、Clamp‑on current probe, the range supports 100mV/A and 10mV/A, with small error. 2、No need to disconnect the circuit, bid farewell to tedious circuit frequency measurement, and make the measurement easier. 3、The current clamp can be used with any test instrument with BNC interface and impedance of 1MΩ and &lt;100pF. 4、Easy to install and use, stable performance, high measurement accuracy, it is a practical electrical equipment. 5、This current clamp has an auto‑zeroing position so that it can be used in different environments. Specification Item Type: Clip-On Current Probe Material: ABS Length: Approx. 230mm / 9.1in Range 100mV/A 10mV/A Current Range 50mA-10A peak 10A-100A Peak Percent Error of Output Signal 3%±5mV 500m-10A Peak Value: 4%±500uV 10-100A Peak Value: 15% Maximum At 100A Frequency Range (-3dB) DC-100KHZ Phase Shift DC-65HZ: <1.5° DC-65HZ: <1° Load Impedance ≥1MΩ and ≤100PF Insertion Impedance 0.01Ω Noise 6mV 600uV Conversion Rate 0.3V/uS 20mV/US Rise/Fall Time 3uS <4uS Measurement Condition 23℃±5℃, 20-75%RH, sinusoidal frequency 48-65HZ, external magnetic field <40A/m, no current-carrying wire nearby, center test sample, load impedance 1M Power Supply 1X6F22 9V alkaline dry battery (not included) Low Battery Indicator When >6.5V, the LED is green Overload Indication The red LED indicates that the measurement current is too large and the range needs to be changed Maximum Insertion in Jaw Diameter 11.8mm / 0.5in Output 2m coaxial cable, terminal with insulated BNC socket Operating Temperature 0-50℃ Storage Humidity -3-80℃ Operating Relative Humidity 10℃-30℃: 85±5% relative humidity (non-condensing) 40℃-50℃: 45±5% Relative Humidity (Non-Condensing) Operating Height 0-2000m / 0-6561.7ft How to Use: 1. Install the battery (this product does not have a battery) to start the current test clamp, and move the switch to the 100mV/A gear. 2. Check that the battery green indicator is on (ON is on, OL is off). 3. Connect the current clamp to the oscilloscope. 4. When the current clamp is closed, but the wire is not clamped. Select the highest sensitivity on the oscilloscope (for example, 1mV/cm, current clamp to select 100mV/A). 5. When the current clamp is closed and there is no conductor, select the highest sensitivity on the oscilloscope and the current clamp (for example: 1mV/cm) and then turn the current clamp zeroing button, the oscilloscope phase is reset, so that the oscilloscope can adapt to what it is doing position). 6. Choose the current clamp and oscilloscope to test the sensitivity 7. Choose the most suitable method for connecting the current clamp to the oscilloscope. 8. The current clamp clamps the current conductor to be measured and starts the measurement. Package List 1 x Clip-On Current Probe 1 x Manual