FNIRSI DSO-TC3 Handheld 3-in-1 Oscilloscope – Signal Generator, Transistor & Component Tester

The FNIRSI DSO-TC3 is a compact and versatile 3-in-1 handheld device that integrates a digital oscilloscope, function signal generator, and transistor/component tester. Designed for electronics enthusiasts, technicians, and hobbyists, it offers a comprehensive set of features in a portable form factor.

🔧 Key Features

• Digital Oscilloscope: Offers a real-time sampling rate of 10MS/s and a bandwidth of 500kHz, suitable for observing both periodic analog and aperiodic digital signals.

• Signal Generator: Provides six waveform outputs—sine, square, pulse, triangle, ramp, and DC—ranging from 1Hz to 100kHz, with adjustable frequency and amplitude.

• Transistor & Component Tester: Automatically identifies and measures various components including NPN/PNP transistors, diodes, resistors, capacitors, inductors, and more.

• Infrared Decoding: Capable of analyzing and displaying NEC protocol infrared codes.

• Voltage & Continuity Testing: Measures input voltages up to 40V and performs continuity tests for circuit integrity.

• Temperature & Humidity Measurement: Supports DS18B20 and DHT11 sensors for environmental monitoring.

• User-Friendly Interface: Equipped with a 2.4-inch TFT color display and intuitive controls for ease of use.

• Portable Design: Compact dimensions and a built-in rechargeable lithium battery ensure mobility and convenience.

📐 Specifications

• Display: 2.4-inch TFT color screen

• Sampling Rate: 10MS/s

• Bandwidth: 500kHz

• Signal Generator Output: 1Hz–100kHz

• Transistor Testing: NPN/PNP transistors, diodes, resistors, capacitors, inductors

• Voltage Measurement: 0–40V

• Temperature & Humidity Sensors: DS18B20, DHT11

• Infrared Decoding: NEC protocol

• Power Supply: Rechargeable lithium battery

• Charging Interface: USB Type-C

• Dimensions: Approximately 76 × 110 × 30 mm

• Weight: Approximately 0.5 kg

🎯 Ideal For

Electronics technicians, hobbyists, and educators seeking a multifunctional, portable, and cost-effective tool for circuit analysis, component testing, and signal generation.