Features High Performance: Comes with 200Khz bandwidth and 1MSa/s sampling rate, the digital oscilloscope ensures excellent performance in testing. Colorful Screen: The 2.4in LCD color display has 320 x 240 resolution, making the graphic display clearer and the operation much easier. 3 Shooting Modes: With automatic, regular and single shot modes, the oscilloscope is easy and accurate in catching instantaneous waveforms. Extensive Using: Widely used in academic experiments, electronic maintenance, electronic engineering and so on, meeting your various needs. Simple Carrying: A compact size together with a light weight enables convenient carrying within your pocket, ideal for indoor and outdoor. Features:1. It has automatic, conventional and single shot modes, and is easy to catch instantaneous waveforms. 2. Available rising or falling edge triggers. 3. Adjustable trigger horizontal position, which can be adjusted according to the instructions. 4. Observable previous trigger waveform, negative delay. 5. Waveform display can be fixed at any time with HOLD function.How to Use: 1. Button function: V/DIV: Sensitivity and vertical position selection. SEC/DIV: Select time base and horizontal position. TRIGGER: Select trigger mode, trigger level or trigger edge. OK: Press once to enter the HOLD function, and press a second time to exit the HOLD function. ADJ: Direction key, turn left and right to select parameters, and the selected parameters will be highlighted. GND DC AC: The coupling can be switched to DC, AC or GND. When it is switched to GND, the oscilloscope input is disconnected from the external input and connected to the ground, that is, the input is 0V. 2. Function Operation: Vertical Position Alignment: Switch to GND, long press V/DIV for 3 seconds. Parameter Bar Opening or Closing: Press and hold the OK key for 3 seconds to open or close the parameter bar. Save Waveform: Press OK and TRIGGER at the same time, and the current waveform will be saved in EEPROM. The original data will be replaced. Package List 1 x Digital Oscilloscope 1 x Probe 1 x Test Element (The test element consists of 3pcs 300 Ω patch resistor) 1 x User Manual