Digital Oscilloscope - FNIRSI DSO-TC3 3 in 1 Oscilloscope, Transistor Tester And Signal Generator, 2.4 inch, 10 MS/s, 50
Product reference: 14-5905156102316

FNIRSI DSO-TC3 - a handheld device that combines a digital oscilloscope, transistor and component tester, and signal generator, with a 2.4-inch color display. It features a 10 MS/s sampling rate, 500 kHz bandwidth, six signal types, USB-C charging, and a built-in 1,500 mAh battery.

Digital Oscilloscope - FNIRSI DSO-TC3 3 in 1 Oscilloscope, Transistor Tester And Signal Generator, 2.4 inch, 10 MS/s, 50

Product reference: 14-5905156102316

FNIRSI DSO-TC3 - a handheld device that combines a digital oscilloscope, transistor and component tester, and signal generator, with a 2.4-inch color display. It features a 10 MS/s sampling rate, 500 kHz bandwidth, six signal types, USB-C charging, and a built-in 1,500 mAh battery.

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77,88 €
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Guarantee
24 month

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FNIRSI DSO-TC3 3 in 1: oscilloscope, transistor tester and signal generator


FNIRSI DSO-TC3 is a digital oscilloscope, transistor and component tester, and signal generator in one portable device with a 2.4-inch color display. The device provides a 10 MS/s sampling rate, 500 kHz bandwidth, six waveform types, charging via USB-C, and has a built-in 1,500 mAh battery.


  • 3-in-1 portable tool combining a digital oscilloscope, transistor and component tester, and signal generator for electronics diagnostics and repair.
  • Oscilloscope with 10 MS/s sampling rate, 500 kHz bandwidth, automatic measurements, multiple trigger modes and a clear 2.4-inch color display.
  • The smart tester automatically recognizes transistors, MOSFETs, diodes, capacitors, resistors, inductors and other components and displays their basic parameters.
  • The built-in generator generates six types of waveforms from 1 Hz to 100 kHz. The device has a compact ABS housing, a foldable stand and a rechargeable 1,500 mAh battery.

Product information

Product type 3-in-1 portable digital oscilloscope, transistor and component tester, and signal generator
Brand FNIRSI
Model DSO-TC3
Screen 2.4 inch color HD TFT screen
Dimensions 79 × 103 × 31mm
Housing material ABS

Oscilloscope specifications

Input impedance 1 MΩ
Connection AC/DC
Voltage range with 1:1 probe 80 Vpp (±40 V)
Voltage range with 10:1 probe 800 Vpp (±400 V)
Vertical sensitivity 10mV-10V
Time base 1 µs-10 s
Launch modes Automatic, regular and disposable
Launch edge Ascending/descending
Automatic measurements Vmax, Vmin, Vave, Vrms, Vpp, frequency, period and duty cycle
Calibration signal 1 kHz square wave

Component tester

Supported transistors NPN and PNP, β 10-600
Supported semiconductor devices N-channel and P-channel MOSFETs, IGBTs, JFETs, SCRs, TRIACs, standard diodes, dual diodes and Zener diodes
Resistance measurement range 0.01Ω-50MΩ
Capacity measurement range 25pF-100mF
Inductance measurement range 10 µH-1,000 mH
Zener diode measurement Up to 32V
Battery check 0.1-4.5 V, including voltage and polarity setting
Component identification Automatic terminal detection and parameter display

Signal generator and additional functions

Generated waveforms Sine, rectangular, pulse, triangular, ramp and continuous
Generator frequency 1Hz-100kHz
Generator amplitude 0-3.3V
Duty cycle 0-100%
Checking the integrity of the circuit Yes
Input voltage measurement 0-40V
PWM output Yes
Temperature sensor support DS18B20: 0-85°C
Temperature and humidity sensor support DHT11: 0-60 °C and 5-95% relative humidity
Infrared decoder NEC protocol with user code and data code display

Power supply and construction

Battery 1,500 mAh, 3.7 V lithium polymer
Duration of operation Up to 4 hours
Charging USB-C, 5V/1A
Stand Foldable, adjustable up to 90°
Included accessories Measurement probe, three test clips, USB-C cable and user manual

Safety warning

Warning Use only within the specified measurement ranges and with the appropriate probes and accessories. Disconnect power before testing passive components. Never connect the oscilloscope or tester to circuits with voltages exceeding the permissible input voltage. This device is intended for electronic testing, diagnostics, and repair and should be used by persons familiar with electrical measurement procedures.

Height100mm
Length200mm
Weight350 g
Width150mm
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