Features: This mini oscilloscope is designed for electronic hobbyists to learn about electronics, soldering, programming and SMT32 . It contains main control board, TFT LCD and other electronic components to DIY a functional mini digital oscilloscope.Use SMT32 Chip.. Pre-programmed. The control board is programmed before leaving factory. It is high quality and safe to use. With Cool Black Case. this with a cook black case, which makes it convenient to use in teaching and testing. Notice: This oscilloscope requires DC9V 200mA power supply (no more than 10V or it may beburned) Specifications: Input impedance: 1MΩ Bandwidth: 0-200 KHz Input voltage: 50Vpp (1: 1 probes), 400Vpp (10: 1 probes) Real-time sampling rate: 1Msps Comes 1Hz /3.3V square waves test signal source Accuracy: 12Bit Size：approx 18x11cm/7.09x4.33in Package Includes: 1Set Oscilloscope Digital LCD Display Module Fully Assembled note: Please allow 0-1cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you