
Portable 3-in-1 mini oscilloscope FNIRSI DSO-TC4
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Description
Product information
Portable mini 3-in-1 oscilloscope FNIRSI DSO-TC4
FNIRSI DSO-TC4 is a device that combines three functions: digital oscilloscope, electronic component tester and signal generator. By combining waveform analysis with component recognition and signal test functions, it will prove useful in service applications. In addition, the intelligent Anti-Burn function protects the input circuit from damage when measuring probes are connected incorrectly. This makes the equipment safe to use even for less advanced users.
Measurement functions and signal analysis
The device offers a measurement bandwidth of up to 10 MHz and a sampling rate of 48 MSa/s. It can display waveforms with high detail and accuracy, allowing real-time analysis of voltage signals. With 13 predefined waveforms and frequencies in the range of 0-50 kHz (amplitude 0.1-3.0V), the signal generator allows simulation of various circuit operating conditions.
Extensive component testing capabilities
The integrated component tester automatically recognizes diodes, transistors (including MOSFETs), resistors, capacitors and other passive and active components. With test sockets and intelligent component detection, quick diagnostics and parameter identification are possible.
Convenient operation
A 2.8-inch TFT color screen provides easy-to-read data and graphs. The user interface supports eight languages, making it easy to configure the device. The control panel is designed for quick access to key functions, such as auto mode, pause, and mode change.
Connectivity and power supply
The oscilloscope features a USB-C port for charging and data transfer. The ability to export waveforms to a computer facilitates further analysis and archiving of results. A built-in 1,500 mAh lithium-ion battery ensures long operation of the device, and an automatic sleep mode extends the operating time between charges.
Included
- oscilloscope
- P1600 probe
- crocodile clamp
- 3x test hooks
- user manual
- USB-C charging cable
- adapter
Oscilloscope
| Manufacturer | Fnirsi |
|---|---|
| Model | DSO-TC4 |
| Display | TFT color screen 2.8 inches |
| Backlighting | Adjustable brightness |
| Power supply | USB Type-C (5V/1A) |
| Battery | Lithium-ion 3.7V, 1500mAh |
| Languages | 8 languages (including Chinese, English, German, Portuguese, Japanese, Spanish, Korean, Russian) |
| Dimensions | approx. 90×142×27.5mm |
| Weight | 186 g |
| Real-time sampling rate | 48MSa/s |
| Analog bandwidth | 10 MHz |
| Input impedance | 1MΩ |
| Coupling mode | AC/DC |
| Test voltage range | Probe 1:1 - 80Vpp (±40V); Probe 10:1 - 800Vpp (±400V) |
| Vertical sensitivity | 10mV/div-10V/div (X1 range) |
| Vertical offset | Adjustable with indication |
| Time base range | 50ns-20s |
| Trigger modes | Auto / Normal / Single |
| Trigger type | Rising edge, Falling edge |
| Trigger level | Adjustable with indication |
| Freeze waveform | Yes (HOLD function) |
| Automatic measurement | Max, Min, average, RMS, Vpp, frequency, period, fill factor (duty cycle) values |
Transistors
| Diode | Range: Voltage drop <5V |
|---|---|
| Zener diode | Range: 0.01-32V; reverse breakdown voltage (K-A-A test area). |
| Field-effect transistors (FETs) | JFET - measurement of gate capacitance (Cg), Id current at Vgs and voltage drop across guard diode (Uf); IGBT - measurement of drain current at Vgs, voltage drop across guard diode (Uf); MOSFET - threshold voltage (Vt), gate capacitance (Cg), drain-source resistance (Rds), voltage drop across guard diode (Uf). |
| Thyristors (SCR) | Unidirectional - trigger voltage <5V, gate level; bidirectional - trigger current <6mA |
| Capacitors | Range: 25pF-100mF, capacitance and loss factor (Vloss) measurement |
| Resistors | Range: 0.01Ω-50MΩ |
| Inductor | Range: 10μH-1000μH |
Signal Generator
| Output waveform | Supports 13 types of waveforms |
|---|---|
| Waveform frequency | 0-50 kHz |
| Waveform fill factor | 0-100% |
| Waveform amplitude | 0.1-3.0V |
Warranty: 24 months
Portable mini 3-in-1 oscilloscope FNIRSI DSO-TC4
FNIRSI DSO-TC4 is a device that combines three functions: digital oscilloscope, electronic component tester and signal generator. By combining waveform analysis with component recognition and signal test functions, it will prove useful in service applications. In addition, the intelligent Anti-Burn function protects the input circuit from damage when measuring probes are connected incorrectly. This makes the equipment safe to use even for less advanced users.
Measurement functions and signal analysis
The device offers a measurement bandwidth of up to 10 MHz and a sampling rate of 48 MSa/s. It can display waveforms with high detail and accuracy, allowing real-time analysis of voltage signals. With 13 predefined waveforms and frequencies in the range of 0-50 kHz (amplitude 0.1-3.0V), the signal generator allows simulation of various circuit operating conditions.
Extensive component testing capabilities
The integrated component tester automatically recognizes diodes, transistors (including MOSFETs), resistors, capacitors and other passive and active components. With test sockets and intelligent component detection, quick diagnostics and parameter identification are possible.
Convenient operation
A 2.8-inch TFT color screen provides easy-to-read data and graphs. The user interface supports eight languages, making it easy to configure the device. The control panel is designed for quick access to key functions, such as auto mode, pause, and mode change.
Connectivity and power supply
The oscilloscope features a USB-C port for charging and data transfer. The ability to export waveforms to a computer facilitates further analysis and archiving of results. A built-in 1,500 mAh lithium-ion battery ensures long operation of the device, and an automatic sleep mode extends the operating time between charges.
Included
- oscilloscope
- P1600 probe
- crocodile clamp
- 3x test hooks
- user manual
- USB-C charging cable
- adapter
Oscilloscope
| Manufacturer | Fnirsi |
|---|---|
| Model | DSO-TC4 |
| Display | TFT color screen 2.8 inches |
| Backlighting | Adjustable brightness |
| Power supply | USB Type-C (5V/1A) |
| Battery | Lithium-ion 3.7V, 1500mAh |
| Languages | 8 languages (including Chinese, English, German, Portuguese, Japanese, Spanish, Korean, Russian) |
| Dimensions | approx. 90×142×27.5mm |
| Weight | 186 g |
| Real-time sampling rate | 48MSa/s |
| Analog bandwidth | 10 MHz |
| Input impedance | 1MΩ |
| Coupling mode | AC/DC |
| Test voltage range | Probe 1:1 - 80Vpp (±40V); Probe 10:1 - 800Vpp (±400V) |
| Vertical sensitivity | 10mV/div-10V/div (X1 range) |
| Vertical offset | Adjustable with indication |
| Time base range | 50ns-20s |
| Trigger modes | Auto / Normal / Single |
| Trigger type | Rising edge, Falling edge |
| Trigger level | Adjustable with indication |
| Freeze waveform | Yes (HOLD function) |
| Automatic measurement | Max, Min, average, RMS, Vpp, frequency, period, fill factor (duty cycle) values |
Transistors
| Diode | Range: Voltage drop <5V |
|---|---|
| Zener diode | Range: 0.01-32V; reverse breakdown voltage (K-A-A test area). |
| Field-effect transistors (FETs) | JFET - measurement of gate capacitance (Cg), Id current at Vgs and voltage drop across guard diode (Uf); IGBT - measurement of drain current at Vgs, voltage drop across guard diode (Uf); MOSFET - threshold voltage (Vt), gate capacitance (Cg), drain-source resistance (Rds), voltage drop across guard diode (Uf). |
| Thyristors (SCR) | Unidirectional - trigger voltage <5V, gate level; bidirectional - trigger current <6mA |
| Capacitors | Range: 25pF-100mF, capacitance and loss factor (Vloss) measurement |
| Resistors | Range: 0.01Ω-50MΩ |
| Inductor | Range: 10μH-1000μH |
Signal Generator
| Output waveform | Supports 13 types of waveforms |
|---|---|
| Waveform frequency | 0-50 kHz |
| Waveform fill factor | 0-100% |
| Waveform amplitude | 0.1-3.0V |
Warranty: 24 months

































































































































































































