FNIRSI-138 2.4" TFT Handheld Mini Digital Oscilloscope Kit + DIY Acrylic Shell

SKU: 1941135

18.89 18.89 Piece 18.89 USD

¥ 136.00

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  • 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.

  • 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.

  • The SMD has been soldered, more suitable for electronic beginner.


  • DIY cover for DSO FNIRSI-138 oscilloscope.

  • Acrylic material, looks transparent(need to tear down the film).

  • Easy for electronic enthusiasts to assemble.


  • 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)

  • Input Impedance: 1M

  • Maximum Input Voltage: 50Vpp (1: 1 probe), 400Vpp (10: 1 probe)

  • Coupling Modes: DC / AC / GND

  • The Horizontal Time Base Range: 10μs / Div - 50s / Div (1-2-5 progressive manner)

  • Supply Voltage: DC 9V

  • PCB Size: 117 * 76mm / 4.6 * 3in

  • Screen Size: 52 * 40mm / 2 * 1.57in