FNIRSI DSO-TC4 Portable 3-in-1 Mini Oscilloscope

The FNIRSI DSO-TC4 is a multifunctional 3-in-1 diagnostic device integrating a digital oscilloscope, electronic component tester and signal generator into a single portable unit. It is designed for circuit analysis, component verification and signal simulation in repair, development and educational environments. The oscilloscope section provides a 10 MHz bandwidth and 48 MSa/s sampling rate, allowing accurate real-time observation of voltage waveforms and transient behaviour. The integrated signal generator supports 13 selectable waveform types with adjustable frequency up to 50 kHz and amplitude control, enabling flexible testing of electronic circuits under different operating conditions.

The built-in component tester automatically detects and identifies a wide range of electronic components, including diodes, BJTs, MOSFETs, resistors and capacitors, providing fast parameter evaluation and fault diagnosis. An intelligent Anti-Burn protection system safeguards the input circuitry against incorrect probe connections, improving operational safety. The 2.8-inch TFT color display ensures clear visualization of waveforms and measurement data, while a multilingual interface supports ease of use across different users. A 1500 mAh lithium-ion battery provides extended operating time, and USB-C connectivity enables charging and data export for further analysis and documentation.