# DSO-TC3 3-IN-1 Handheld 500KHz 10MS/s Digital Oscilloscopes Signal Generator Transistor Tester

**Type:** Product page · **SKU:** CE10448 · **Brand:** [FNIRSI](https://core-electronics.com.au/brands/fnirsi)
**Page:** https://core-electronics.com.au/fnirsi-tc3-digital-oscilloscope-3-in-1-handheld-testing-device.html ([markdown](https://core-electronics.com.au/fnirsi-tc3-digital-oscilloscope-3-in-1-handheld-testing-device.html.md))

Streamline your bench diagnostics by combining an oscilloscope, component tester, and signal generator into one handheld unit. The FNIRSI DSO-TC3 features a 10MSa/s sample rate and automated transistor identification for rapid troubleshooting of electronics projects.

> ⚠ For extra-low-voltage circuits only (under 50 V AC or 120 V DC). Not for mains-voltage measurements.

## Pricing

- **Price:** $90.25 (inc GST) — $82.05 AUD, exc GST

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 300 more in 8–25 days.

## Description

A high-integration, handheld laboratory instrument that combines a digital storage oscilloscope, a sophisticated electronic component tester, and a versatile function signal generator into a single, pocket-sized device. Designed for the modern maker bench, it serves as a first-call diagnostic tool for identifying components and visualising signals without the need for a desk full of expensive, bulky hardware.

Electronics enthusiasts often struggle with the "unknown component" dilemma - unmarked transistors or mystery diodes that make troubleshooting a headache. The DSO-TC3 solves this by providing instant, automated pinout detection and characteristic analysis; meanwhile, its integrated oscilloscope and signal generator allow you to inject a waveform and trace it through your circuit in one seamless workflow, saving valuable bench space and reducing setup time.

Built with a rugged housing and a bright 2.4-inch colour TFT display, this unit is engineered for both portability and precision.

### Features

- **Master your circuit diagnostics** with a 3-in-1 design that replaces a standalone oscilloscope, component tester, and signal generator, streamlining your workspace.
- **Identify mystery components instantly** using the automated transistor tester mode, which detects NPN/PNP, MOSFETs, diodes, and even ESR in capacitors with zero manual configuration.
- **Visualise high-speed signals** with a 500kHz bandwidth and 10MSa/s sampling rate, providing enough resolution for debugging Arduino, ESP32, and most hobbyist microcontroller projects.
- **Verify complex logic and timing** using the built-in signal generator, allowing you to output sine, square, and pulse waves up to 100kHz to simulate sensors or clock signals.
- **Expand your testing toolkit** with specialised "Toolbox" functions, including infrared NEC protocol decoding, DS18B20 temperature sensing, and DHT11 humidity measurement.
- **Safely test high-voltage components** like Zener diodes (up to 32V) via a dedicated test area, ensuring you can verify regulation circuits.
- **Enjoy long-term field use** thanks to the USB-C rechargeable 1500mAh battery and a compact, lightweight chassis that fits easily into a toolkit.
 
### Specifications

 | Property | Specification |
|---|---|
| **Display** | 2.4-inch TFT Colour Screen (LED Backlight) |
| **Oscilloscope Bandwidth** | 500 kHz |
| **Real-time Sample Rate** | 10 MSa/s |
| **Input Resistance** | 1 MΩ |
| **Trigger Modes** | Auto, Normal, Single |
| **Transistor Tester Range** | HFE, MOSFET, Diodes, IGBT, SCR |
| **Capacitance Range** | 25 pF to 100 mF |
| **Resistance Range** | 0.01 Ω to 50 MΩ |
| **Signal Generator Frequency** | 1 Hz to 100 kHz |
| **Signal Amplitude** | 3.3 V (Fixed) |
| **Battery** | 1500 mAh Lithium (USB-C Rechargeable) |
| **Dimensions** | 103 mm x 79 mm x 31 mm |

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/C/E/CE10448-1.jpg)