This portable oscilloscope features a 2.4-inch color TFT display, the size is 3.35 x 2.26 x 0.79 inches, easy to carry;The maximum real-time sampling rate of this small oscilloscope is 24MS/s, with a bandwidth of 200KHz. The maximum input voltage is -16V or +50V.The resolution is 320*240. It's suitable for electronic competition, electronic experiment teaching, electrical maintenance, sensor output detection and so on This oscilloscope offers three full trigger modes: automatic, normal and single. It is easy to capture the instantaneous waveform in order to realize the stable display and measurement of the waveform. You can choose to trigger the rising or falling edge This oscilloscope can choose GND/AC/DC three coupling modes and X10/X5/X1 three sensitivity adjustable. Note When using, if you are not sure about the signal voltage, you can first select the gear position of 10V/, and then long press [MENU] to enter the detailed information interface for observation, so as not to damage the oscilloscope Press the ""SEL"" key to select the parameters to be adjusted. Press the Menu key to ze the waveform and display the parameters clearly. Press and hold MENU to display the information screen, including VPP and frequency. The oscilloscope comes with a detailed manual, making it easy to operate and learn. Package includes: 1Pcs*Digital Oscilloscope 1Pcs*USB cable 1Pcs*BNC alligator clip Maximum Real-Time Sampling Rate: 24MSa/s Analog Bandwidth: 0-200KHz Vertical Sensitivity Range: 1V/ - 10V/ Maximum Input Voltage: -16V or +50V Input Impedance: 1M/20pF Vertical Resolution: 12 bits Record Length: 600 points Time Base Range: 100ms/ - 25us/ Trigger Modes: Auto, Normal, and Single Power Supply: 5V DC Power Supply Current: -140mA Dimensions: 85x57.5x20mm(3.35x2.26x0.79inch) Material:Metal Note: The black end of the BNC alligator clip must be connected to the common ground (0V) and must not be connected to positive or negative voltage to prevent damage. The red end allows a voltage range of -16V to +50V. Package Contents: 1 set * Digital Oscilloscope