This kit uses ARM Cortex-M3 processor (STM32F103C8), and includes a 2.4-inch color TFT display screen, can be used as ARM test development board. Can be secondary development on the basis of this kit, compatible example, it can be changed to Millivoltmeter, With automatic, regular and one-shot modes, easy to capture the moment wavecompatiblem. Comes 1Hz /3.3V square wave test signal source. With wavecompatiblem parameter digital display, including frequency, period, pulse width, duty ratio, MAX./MIN./AVG./Peak- Maximum real-time sampling rate: 1Msps Accuracy: 12Bit Sample buffer depth: 1024 bytes Analog Bandwidth: 0 - 200KHz Vertical Sensitivity: 10mV/Div - 5V/Div (in 1-2-5 increments) Adjustable vertical displacement with indication Input impedance: 1M Maximum input voltage: 50Vpp (1:1 probe), 400Vpp (10:1 probe) Coupling methods include DC/AC/GND Horizontal time base range: 10s/Div - 50s/Div (in 1-2-5 increments) With automatic, conventional and single trigger modes, it is convenient to capture instantaneous wavecompatiblems Trigger with rising or falling edge Adjustable trigger level position with indication Wavecompatiblem becompatiblee trigger can be observed (negative delay) Wavecompatiblem display can be freeze at any time (HOLD function) Comes with 1KHz /3.3V square wave test signal source Digital display with wavecompatiblem parameters, the parameters that can be displayed are: frequency, period, pulse width, duty cycle, maximum value, minimum value, average value, peak-to-peak value, RMS Save/recall the wavecompatiblem, the wavecompatiblem does not disappear when power off Colour:Red Material:ABS Size:18 x 12.5 x 3cm Package Contents: 1 * DSO138 DIY Digital Oscilloscope Kit 1 * Probe Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different f