Fnirsi DSO-TC4 3-in-1 Portable Mini Oscilloscope

89,90 €
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The Fnirsi DSO-TC4 is a 3-in-1 portable mini oscilloscope that combines a digital oscilloscope, an electronic component tester, and a signal generator. It offers 10 MHz bandwidth, 48 MSa/s sampling, automatic component identification, a 2.8" color TFT display, and practical USB-C power. Thanks to the Anti-Burn function, it protects the input circuit from damage and is suitable for servicing, electronics development, and home measurements.

Fnirsi DSO-TC4 is a compact measuring instrument for quick diagnostics of electronic circuits. As a digital oscilloscope, it displays waveforms in real time with high accuracy, enables measurement of voltage, frequency, period, RMS, Vpp, and duty cycle, and offers trigger modes for common service and development tasks.

The integrated electronic component tester automatically identifies and measures diodes, Zener diodes, resistors, capacitors, inductors, MOSFETs, JFETs, IGBTs, and thyristors. The practical signal generator supports 13 waveform types with frequencies up to 50 kHz, making it easy to simulate various operating conditions when testing circuits.

The device is equipped with a 2.8-inch color TFT display with adjustable brightness, an intuitive control panel, and a USB-C port for charging and data transfer. The built-in 1500 mAh Li-Ion battery ensures convenient use in the field, while the sleep function helps extend operating time between charges.

  • 3 functions in one device: oscilloscope, component tester, and signal generator
  • Safer measurements thanks to Anti-Burn protection
  • Waveform export to a computer for further analysis and archiving
  • Compact size and low weight for easy portability

Package contents: oscilloscope, P1600 probe, alligator clip, 3× test hook, user manual, USB-C charging cable, and adapter.

Specifications

Manufacturer
Fnirsi
Model
DSO-TC4
Device type
3-in-1 portable mini oscilloscope
Functions
Digital oscilloscope, electronic component tester, signal generator
Display
2.8-inch color TFT display
Backlight
Adjustable brightness
Power supply
USB-C, 5 V / 1 A
Battery
Lithium-ion 3.7 V, 1500 mAh
Interface languages
8 languages including Chinese, English, German, Portuguese, Japanese, Spanish, Korean, and Russian
Dimensions
Approx. 90 × 142 × 27.5 mm
Weight
186 g
Real-time sampling rate
48 MSa/s
Analog bandwidth
10 MHz
Input impedance
1 MΩ
Coupling mode
AC / DC
Test voltage range
1:1 probe: 80 Vpp (±40 V); 10:1 probe: 800 Vpp (±400 V)
Vertical sensitivity
10 mV/div – 10 V/div (X1 range)
Vertical offset
Adjustable with indication
Time base range
50 ns – 20 s
Trigger modes
Auto / normal / single
Trigger type
Rising edge, falling edge
Trigger level
Adjustable with indication
Waveform freeze
Yes, HOLD function
Automatic measurement
Max, Min, average, RMS, Vpp, frequency, period, duty factor / duty cycle
Diode test
Voltage drop <5 V
Zener diode test
Range 0.01–32 V; reverse breakdown voltage, K-A-A test area
FET transistor test
JFET: gate capacitance (Cg), Id current at Vgs, protection diode voltage drop (Uf); IGBT: drain current at Vgs, protection diode voltage drop (Uf); MOSFET: threshold voltage (Vt), gate capacitance (Cg), drain-source resistance (Rds), protection diode voltage drop (Uf)
Thyristor (SCR) test
Unidirectional: trigger voltage <5 V, gate level; bidirectional: trigger current <6 mA
Capacitor test
Range 25 pF – 100 mF, capacitance and loss factor (Vloss) measurement
Resistor test
Range 0.01 Ω – 50 MΩ
Inductor test
Range 10 μH – 1000 μH
Generator output waveforms
13 waveform types
Signal generator frequency
0–50 kHz
Waveform duty cycle
0–100%
Waveform amplitude
0.1–3.0 V
Package contents
Oscilloscope, P1600 probe, alligator clip, 3× test hook, user manual, USB-C charging cable, adapter
89,90 €