Features:[2 Models Optional, Multifunction Instrument] HDS2102 (oscilloscope + multimeter); HDS2102S (oscilloscope + multimeter + waveform generator). One machine in hand, worry-free testing in multiple scenes.[Function Brief Introduction] Oscilloscope -- dual channels input, 100MHz bandwidth, 500MSa/s sampling rate. Multimeter -- true RMS, 20000 counts, auto range, voltage/ current/ resistance/ diode/ capacitance/ continuity testing. Waveform generator -- output sine, square, ramp, pulse, and built-in special waveforms; 125MSa/s sampling rate, 8k waveform length.[Digital LCD Display] 3.5-inch high-resolution, high-contrast color LCD display, clear at a glance, easy to read even in dark environment. Supports self-calibration function. SCPI supported, facilitates secondary development.[Rechargeable, PC Software Supported] Built in with 4400mAh lithium battery, provides about 4 hours long working time. Less than 5W ultra-low comprehensive power consumption, power-saving. Type-C USB interface, comes with USB cable and power adapter for easy and quick charging, supports PC software connection.[Small Size, Wide Use] Compact and lightweight, easy to operate, portable to carry. Suitable for outdoor maintenance, rapid on-site measurement, automobile maintenance, power detection, etc. Foldable bracket in the back for easy standing and saving space.Note: Color and size may be slightly different due to manual measurement and different light conditions. Thanks for understanding.