Automatic amplitude measurement, 4 kinds of measurement modes can be selected by yourself. There are two models ET601 and ET602 for you to choose from, and you can choose according to your demands. ET601 supports only USB connections, and ET602 supports both USB'WiFi connections. Oscilloscope Function: Automatic amplitude measurement, 4 kinds of measurement modes can be selected by yourself. With time and frequency measurement, automatic top-measurement, and frequency measurement. Trigger Function: Supports any channel rising-edge trigger and any channel falling-edge trigger. Multifunctional Design: With differential analysis, reverse display, custom display, and custom algorithm, display up to 90 hours of data. Auxiliary Function: Support spectrum analysis, with the screen ruler and white background for easy printing. Two Models Available: There are two models ET601 and ET602 for you to choose from, you can choose according to your demands. ET601 supports only USB communication, and ET602 supports both USB'WiFi communication. Specifications: Name: Virtual Oscilloscope Material: plastics Maximum sampling rate: 150kHz Operating voltage: 5V Micro USB interface power supplying Current consumption: <170mAh Measurable frequency ranges: 0Hz-50 kHz Amplitude adjustment ranges: 10 mV/DIV to 1 V/DIV Input impedance: 1 ΜΩ(<0.5V/DIV);330kΩ(>0.5V/DIV) Maximum measurement voltage: ±8 V, ±80 V at probe X10 Amplitude error: ±2.5% Time domain ranges: 100 uS/DIV-10800 S/DIV Data recording and storage depth: 8388608*5 Maximum data recording and storage time: 93 hours Item size: 115 * 70 * 29mm / 4.53 * 2.76 * 1.14in Package size: 130 * 100 * 50mm / 5.12 * 3.94 * 1.97in Package weight: 300g / 10.58ounce Packing List: 1 * Virtual Oscilloscope 1 * Cable