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Fnirsi DSO-TC3 handheld digital oscilloscope 3-in-1 with component tester and signal generator

59,90 €
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Product code: 54465-1
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FNIRSI DSO-TC3 is a compact 3-in-1 device that combines a handheld digital oscilloscope, an intelligent electronic component tester, and a signal generator in one body. It offers 10 MS/s sampling, 500 kHz bandwidth, a color 2.4" HD TFT display, and a built-in 1500 mAh battery – ideal for quick diagnostics in the workshop and in the field.
Color display and fast handheld operation

Color display and fast handheld operation

The clear 2.4" full-color HD TFT display shows waveforms and measured values in a readable, easy-to-understand way. Button control (including RUN/HOLD) speeds up work during diagnostics both in the field and on the bench.

Oscilloscope for quick signal analysis

Oscilloscope for quick signal analysis

The oscilloscope mode offers a 10 MS/s sampling rate and 500 kHz bandwidth, including automatic measurements (Vmax, Vmin, Vrms, Vpp, frequency, period, and duty cycle). A 1 kHz calibration signal for probe compensation is also included.

Component tester and measurement connectors

Component tester and measurement connectors

The integrated tester automatically identifies and measures common active and passive components (e.g., transistors, MOSFETs, resistors, capacitors, inductors) and displays their parameters. The practical design with a connector area on the front makes quick connections easy.

FNIRSI DSO-TC3 is a practical pocket helper for service, teaching, and laboratory measurement. In oscilloscope mode, it provides clear waveform display and automatic calculations (Vmax, Vmin, Vpp, Vrms, frequency, etc.), so you can quickly get oriented even without lengthy setup. Thanks to the AUTO button, trigger modes Auto/Normal/Single, and the HOLD function to freeze the waveform, work is fast and clear.

The integrated component tester automatically identifies and measures a wide range of parts – from resistors, capacitors, and coils to transistors, MOSFETs, or thyristors – including lead detection and parameter display. The built-in DDS generator additionally creates 6 signal types (e.g., sine, square, triangle) in the range from 1 Hz to 100 kHz, which is useful for simulation and testing of circuits without additional equipment.

Main advantages:

  • 3-in-1: oscilloscope + component tester + signal generator
  • 2.4" color HD TFT display for good readability even in bright environments
  • USB-C charging (5 V) and up to 4 hours of operation
  • Fold-out stand adjustable up to 90° for hands-free work
  • Durable ABS housing for everyday use

Package contents: FNIRSI DSO-TC3 oscilloscope, measuring probe, 3 measuring clips, USB-C cable, user manual.

Specifications

Manufacturer
FNIRSI
Model
DSO-TC3
Display
2.4-inch full-color HD TFT
Dimensions
79 × 103 × 31 mm
Battery
1,500 mAh, 3.7 V, lithium-polymer
Operating time
up to 4 hours
Charging
USB Type-C, 5 V / 1 A (5 W)
Stand
folding, adjustable up to 90°
Housing material
ABS
Sampling rate
10 MS/s
Bandwidth
500 kHz
Input impedance
1 MΩ
Coupling
AC / DC
Voltage range (probe 1:1)
80 Vpp (±40 V)
Voltage range (probe 10:1)
800 Vpp (±400 V)
Vertical sensitivity
10 mV – 10 V
Time base
1 µs – 10 s
Trigger modes
Auto / Normal / Single
Trigger edge
Rising / Falling
Waveform hold
Yes
Automatic measurements
Vmax, Vmin, Vave, Vrms, Vpp, frequency, period, duty cycle
Calibration signal
1 kHz square wave
Transistors
NPN, PNP (β 10–600)
MOSFET
N-channel, P-channel, IGBT
JFET
yes
Thyristors
SCR, TRIAC (trigger voltage <5 V, gate current <6 mA)
Diode
standard, dual (forward voltage <4.5 V)
Zener diodes
0.01–4.5 V (sockets 1-2-3) / 0.01–32 V (sockets K-A-A)
Capacitors
25 pF – 100 mF
Resistors
0.01 Ω – 50 MΩ
Inductor
10 µH – 1000 mH
Battery (measurement)
0.1–4.5 V (voltage and polarity measurement)
Signal waveforms
sine, square, pulse, triangle, ramp, DC
Frequency range
1 Hz – 100 kHz
Amplitude
0–3.3 V
Duty cycle
0–100 %
Circuit continuity test
Yes
Input voltage measurement
0–40 V
PWM output
Yes
DS18B20 temperature sensor
0–85 °C
DHT11 temperature and humidity sensor
0–60 °C / 5–95 %
Infrared decoder
NEC protocol (user code and data)
59,90 €