training for electronic production, complete detailed descripti information, including schematics, production guidance, instructions, troubleshooting methods, making a high success rate . Component species di rsity for students to identify elements, inline elements welding,soldering smd components training. Kits using arm cortex-m3 processor (stm32f103c8), and includes a 2.4 -inch color tft display can be used as test arm de lopment board . A ilable source, the ability of a friend can be secondary de lopment kit based on, for example, it can be changed to milli ltmeter, data loggers, and so on . Circuit is simple,reliable. Specification: power input: dc 9 power adapter is not included) maximum real-time sampling rate: 1msps accuracy: 12bit sampling buffer depth: 1024 bytes analogue bandwidth: 0 – 200khz rtical sensiti ty: 10m / di – 5 / di ( 1-2-5 progressi manner) adjustable rtical displacement , and with instructions input impedance: 1m maximum input ltage: 50 p (1: 1 probe), 400 p (10: 1 probe) coupling modes include dc / ac / gnd the horizontal time base range: 10 / di – 50s / di (1-2-5 progressi manner) comes with automatic, regular and one-shot mode, easy to capture the moment wa form a ilable rising or falling edge trigger adjustable trigger le l position, and with instructions obser ble trigger wa form before ( negati delay) can freeze at any time wa form display (hold function) comes 1hz /3.3 square wa test signal source package included 1 x 2.4″ tft digital oscilloscope.