1Set DSO138 2.4" TFT Digital Oscilloscope Assembled SMD Soldered Oscilloscope Parts 1Msps With Matching Wire Description This is Welded(Assembled), can use directly. DSO138 oscilloscope production suite features: Training for electronic production , complete detailed descriptive information , like schematics , instructions, etc., making a high success rate . Component species diversity for students to identify elements , inline elements welding, soldering SMD components training. Students can get in at the same time making a practical tool for audio, video synchronization , low-frequency switching power supply , infrared receiver transmitter signal waveform and many other occasions, effectively observed and measured , increased interest in learning, improve learning outcomes . Kits using ARM Cortex-M3 processor (STM32F103C8), and includes a 2.4 -inch color TFT display can be used as test ARM development board . Available source , the ability of a friend can be secondary development kit based on , for example, it can be changed to Millivoltmeter , data loggers , and so on . Circuit is simple , reliable , inexpensive Performance index Maximum real-time sampling rate : 1Msps Accuracy : 12Bit Sampling buffer depth : 1024 bytes Analog bandwidth : 0 - 200KHz Vertical Sensitivity : 10mV / Div - 5V / Div ( 1-2-5 progressive manner ) Adjustable vertical displacement , and with instructions Input impedance : 1M Maximum input voltage : 50Vpp (1: 1 probe ), 400Vpp (10: 1 probe ) Coupling modes include DC / AC / GND The horizontal time base range : 10μs / Div - 50s / Div ( 1-2-5 progressive manner ) With automatic, regular and one-shot mode , easy to capture the moment waveform Available rising or falling edge trigger Adjustable trigger level position , and with instructions Observable trigger waveform before ( negative delay ) Can freeze at any time waveform display (HOLD function ) Comes 1Hz /3.3V square wave test signal source Package includes: 1 x DSO138 Digital Oscilloscope