DSO FNIRSI-138 2.4" TFT Handheld Pocket-size Digital Oscilloscope Kit DIY Parts for Oscilloscope Electronic Learning Set 1Msps This DSO FNIRSI-138 digital oscilloscope kit adopts ARM Cortex-M3 processor and with 2.4-inch TFT screen. It's easy and reliable for circuit operation. It can display frequency, period, pulse width, duty ratio, MAX./MIN./AVG./Peak-Peak/virtual values. Features: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, for example, it can be changed to Millivoltmeter, data loggers.Adjustable vertical displacement, and with instructions.With automatic, regular and one-shot modes, easy to capture the moment waveform.Available rising or falling edge trigger.Observable previous trigger waveform (negative delay).Can freeze at any time waveform display (HOLD function).Comes 1Hz /3.3V square wave test signal source.With waveform parameter digital display, including frequency, period, pulse width, duty ratio, MAX./MIN./AVG./Peak-Peak/virtual values.Waveform storage function: will not lose the waveform after power off.Short-circuit and open-circuit detection: can help the user find out the soldering error.TFT controller recognition function. Note:This DIY kit is soldered. Specifications:Maximum Real-time Sampling Rate: 1MspsAccuracy: 12BitSampling Buffer Depth: 1024 bytesAnalog Bandwidth: 0-200KHzVertical Sensitivity: 10mV / Div - 5V / Div (1-2-5 progressive manner)Input Impedance: 1MOmegaMaximum Input Voltage: 50Vpp (1: 1 probe), 400Vpp (10: 1 probe)Coupling Modes: DC / AC / GNDThe Horizontal Time Base Range: 10mus / Div - 50s / Div (1-2-5 progressive manner)Supply Voltage: DC 9VPCB Size: 117 * 76mm / 4.6 * 3inScreen Size: 52 * 40mm / 2 * 1.57inPackage Size: 18 * 12.5 * 3cm / 7.08 * 4.92 * 1.18inPackage Weight: 119g / 4.21oz Package List:1 * DSO FNIRSI-138 soldered Oscilloscope Kit1 * Probe