FNIRSI DSO-TC3 Handheld Digital Oscilloscope Transistor Tester Signal Generator 3-in-1

The FNIRSI DSO-TC3 is a compact 3-in-1 multifunction tester combining a digital oscilloscope, transistor tester, and signal generator in one handheld device. Ideal for electronics enthusiasts, technicians, and engineers, it offers versatile measurement and diagnostic capabilities for a wide range of components and circuits.

Advantages

Portable and battery-powered with a 2.4-inch TFT color screen, the DSO-TC3 provides real-time waveform display, automatic component identification, and signal generation. Its USB Type-C charging and built-in 1500mAh battery ensure convenient field use.

Suitable for

• Electronics repair and troubleshooting
• Component testing (transistors, diodes, capacitors, resistors, inductors)
• Educational projects and hobbyist circuits
• Signal waveform analysis and generation

Key specifications

• Oscilloscope bandwidth: 500 kHz, real-time sample rate: 10 MS/s
• Transistor tester: detects NPN/PNP, MOSFETs, JFETs, diodes, resistors, capacitors, inductors
• Capacitance: 25pF - 100mF, Resistance: 0.01Ω - 50MΩ, Inductance: 0.01mH - 1000H
• Signal generator: sine, square, pulse, triangle, sawtooth; frequency 1-100 kHz, amplitude 3.3V fixed
• Display: 2.4-inch TFT, 320x240 pixels
• Power: built-in 1500mAh rechargeable lithium battery, USB Type-C charging
• Automatic calibration for transistor tester

Recommendations

For best results, ensure the battery is fully charged before first use. The device automatically calibrates when testing components. Use the included probes for oscilloscope measurements.