FNIRSI® DSO-TC4
3-IN-1 10MHz 48MSa/s Digital Oscilloscope · Transistor Tester · Signal Generator
Brand: FNIRSI
Product Description
The FNIRSI DSO-TC4 is a powerful 3-in-1 handheld electronic test instrument that integrates a digital oscilloscope, an advanced component (transistor) tester, and a DDS signal generator into one compact device. With a 10MHz bandwidth, 48MSa/s real-time sampling, automatic component recognition, and multiple intelligent protection features, it is ideal for electronics repair, troubleshooting, education, and DIY applications.
Key Highlights
- 3-in-1 multifunction device
- 10MHz oscilloscope bandwidth
- 48MSa/s real-time sampling rate
- Automatic component identification and calibration
- 2.8-inch color LCD screen
- Supports 8 languages
- Intelligent anti-burn protection
- USB data sharing and charging
- Infrared decoding support
- On-off and voltage testing functions
Oscilloscope Specifications
- Real-Time Sampling Rate: 48 MSa/s
- Analog Bandwidth: 10 MHz
- Channels: 1
- Input Impedance: 1 MΩ
- Coupling Mode: AC / DC
Input Voltage Range
- 1:1 Probe: 80 Vpp (±40 V)
- 10:1 Probe: 800 Vpp (±400 V)
- Vertical Sensitivity: 10 mV/div to 10 V/div (X1 range)
- Vertical Displacement: Adjustable with indication
- Time Base Range: 50 ns to 20 s
- Trigger Mode: Auto / Normal / Single
- Trigger Type: Rising edge, Falling edge
- Trigger Level: Adjustable with indication
- Waveform Freeze: Supported (HOLD function)
Automatic Measurements
- Maximum
- Minimum
- Average
- RMS
- Peak-to-Peak (Vpp)
- Frequency
- Cycle
- Duty Cycle
Component / Transistor Tester Functions
Transistor
- hFE amplification factor
- Base-Emitter voltage (Ube)
- Collector current Ic / leakage current Iceo, Ices
- Forward voltage drop of protection diode (Uf)
Diode
- Forward voltage drop < 5 V
- Junction capacitance
- Reverse leakage current
Zener Diode
- Reverse breakdown voltage: 0.01 – 32 V
- K-A-A test area
Field Effect Transistors
- JFET: Gate capacitance (Cg), drain current Id under Vgs
- MOSFET: Threshold voltage (Vt), Cg, Rds
- IGBT: Drain current under Vgs
- Protection diode forward voltage (Uf)
SCR
- Unidirectional SCR: Trigger voltage < 5 V
- Bidirectional SCR: Trigger current < 6 mA
Passive Components
- Resistor: 0.01 Ω – 50 MΩ
- Capacitor: 25 pF – 100 mF (with loss factor Vloss)
- Inductor: 10 µH – 1000 µH (DC resistance)
Sensors
- DS18B20 temperature sensor (GND, DQ, VDD)
- DHT11 temperature & humidity sensor (VDD, DATA, GND)
Signal Generator Specifications
- Output Waveforms: Supports 13 waveform types
- Frequency Range: 0 – 50 kHz
- Output Amplitude: 0.1 V – 3.0 V
- Square Wave Duty Cycle: 0 – 100%
Display & System Features
- Display: 2.8-inch color LCD
- Automatic Calibration: Supported
- Languages: 8 languages supported
- Infrared Decoding: Supported
- Voltage Test: Supported
- On-Off (Continuity) Test: Supported
- Intelligent Anti-Burn Protection: Supported
- USB Sharing & Charging: Supported
Applications
- Electronic circuit troubleshooting
- Component identification and testing
- Educational laboratories and training
- Embedded systems development
- DIY electronics and repair work
Package Contents
- FNIRSI DSO-TC4 main unit
- Test leads / probes
- USB cable
- User manual
Product Summary
The FNIRSI DSO-TC4 is a compact yet highly capable all-in-one electronics diagnostic tool. By combining oscilloscope, component tester, and signal generator functions with intelligent protection and automatic calibration, it delivers excellent efficiency and value for engineers, technicians, and hobbyists.