Multifunction Oscilloscope with Signal Generator and Component Tester

The DSOTC4 is a compact 3-in-1 oscilloscope: 10MHz/48MSa/s digital oscilloscope, signal generator and component tester. It offers Anti-Burn protection, IR decoding, 13 waveforms, rechargeable battery and USB connection for PC analysis. Ideal for technicians and hobbyists.

SKU 6080-DSOTC4EAN 8219671111973Brand: FNIRSIProduct type: Component & LED testers, Oscilloscopes & signal analysis, , ,

Description

The DSOTC4 is an advanced 3-in-1 multifunction oscilloscope that combines a digital oscilloscope, signal generator and transistor/electronic component tester. Compact and lightweight, it is the ideal instrument for electronics professionals and hobbyists, perfect for both maintenance and circuit development and testing.

Fitted with a highly legible 2.8″ colour TFT display, the DSOTC4 offers a real sampling rate of 48MSa/s and an analog bandwidth of 10MHz, ensuring precise waveform capture. Intelligent Anti-Burn protection ensures safe measurements up to ±400V.

The built-in signal generator supports 13 different waveforms with frequency adjustable from 0 to 50KHz and amplitude up to 3V. The component tester can automatically identify and test a wide range of devices such as transistors, MOSFETs, IGBTs, diodes, zener diodes, thyristors, resistors, capacitors and inductors.

In addition, thanks to the built-in 1500mAh battery rechargeable via USB-C, the DSOTC4 offers up to 4 hours of battery life. The USB data saving and sharing function allows advanced waveform analysis directly on the PC.

Easy to use and fully portable, the DSOTC4 is the perfect solution for anyone who wants a reliable, versatile all-in-one instrument.


Digital oscilloscope, signal generator, transistor tester and Anti-Burn functionThe DSOTC4 is a compact 3-in-1 oscilloscope

The DSOTC4 combines a digital oscilloscope, signal generator and electronic component tester.
It offers ±400V protection, an intelligent Anti-Burn function, IR decoding, 13 waveforms and support for 8 languages.
Compact and versatile, it is the ideal instrument for any lab or field work.


Simple, intuitive interface for complete control of all DSOTC4 functions

The DSOTC4 is a compact 3-in-1 oscilloscope

The DSOTC4 offers a clear, intuitive user interface, with dedicated buttons and a selector for transistor testing.
It has a Type-C input for charging, a rear stand for tilted use and connectors for the oscilloscope and signal generator.
Everything you need, right at your fingertips.


Built-in toolbox with advanced functions for electronic testing and IR decoding

The DSOTC4 is a compact 3-in-1 oscilloscope

The DSOTC4 offers a full Toolbox mode: voltage testing, continuity, Zener diodes, DS18B20 and DHT11 sensors, plus IR signal decoding for remote controls and devices.
A compact yet powerful instrument, perfect for any workbench or technical job.


High-performance oscilloscope
10MHz bandwidth and 48MSa/s sampling

The DSOTC4 is a compact 3-in-1 oscilloscope

The DSOTC4 ensures accurate acquisitions thanks to a 10MHz bandwidth and a 48MSa/s sampling rate, allowing you to capture every detail of electronic signals even in the most complex circuits.


Built-in signal generator with 13 waveforms adjustable from 0 to 50KHz

The DSOTC4 is a compact 3-in-1 oscilloscope

The DSOTC4 features a versatile signal generator, with 13 selectable waveforms, frequency adjustable from 0 to 50KHz and amplitude from 0.1 to 3.0V, to meet any electronic testing and development need.


Intelligent recognition and quick testing of electronic components

The DSOTC4 is a compact 3-in-1 oscilloscope

The DSOTC4 automatically detects and tests a wide range of components: transistors, MOSFETs, IGBTs, thyristors, diodes, zener diodes, resistors, capacitors and inductors, simplifying the diagnostic and verification work on electronic circuits.


Intelligent Anti-Burn protection for safe measurements up to ±400V

The DSOTC4 is a compact 3-in-1 oscilloscope

The DSOTC4 is fitted with full-coverage Anti-Burn protection, which prevents damage to the instrument and to the components under test, ensuring reliable and safe measurements even in the presence of high-voltage signals.


Data sharing and management via USB connection to a PC

The DSOTC4 is a compact 3-in-1 oscilloscope

The DSOTC4 allows direct transfer of waveform data to a PC via USB connection.
Ideal for easily storing, analysing and sharing test results, making lab work even more efficient.

Technical specifications
  • General:
    Supported languages: Chinese, English, German, Portuguese, Japanese, Spanish, Korean, Russian
  • Oscilloscope:
    Vertical offset: Adjustable with indicator
    Timebase range: 50ns ~ 20s
    Trigger mode: Auto / Normal / Single
    Trigger type: Rising and falling edge
    Trigger level: Adjustable with indicator
    Waveform freeze: Supported (HOLD function)
    Automatic measurements: Max, Min, Average, RMS, Vpp, Frequency, Period, Duty cycle
  • Signal generator:
    Supported waveforms: 13 types
    Frequency: 0 ~ 50KHz
    Square wave duty cycle: 0 ~ 100%
    Waveform amplitude: 0.1V ~ 3.0V
  • Component tester:
    Transistors: hFE, Ube, Iceo, Ices, Uf
    Diodes: Forward voltage drop < 5V, junction capacitance, reverse leakage current
    Zener diodes: 0.01 ~ 32V
    Field-effect transistors (JFET, IGBT, MOSFET): Cg, Id, Rds, Uf
    Unidirectional SCR: Trigger voltage < 5V
    Bidirectional SCR: Trigger current < 6mA
    Capacitors: 25pF ~ 100mF
    Resistors: 0.01Ω ~ 50MΩ
    Inductors: 10μH ~ 1000μH
    Supported sensors: DS18B20 (temperature), DHT11 (temperature and humidity)
  • Other functions:
    Intelligent Anti-Burn protection
    Infrared decoding (IR Decoding)
    Waveform screenshot saving
    USB data sharing for PC analysis
    Automatic sleep mode for power saving
    Toolbox function with voltage, continuity, Zener diode, IR, DS18B20 and DHT11 testing

The DSOTC4 is a compact 3-in-1 oscilloscope

Package contents:
DSOTC4
100 MHz X10/X1 probe
BNC adapter
USB Type-C cable
Cables with crocodile clips
Test clips (red, black and green)
User manual
Original packaging

Documentation
 

Technical details

Model DSOTC4
Display 2.8-inch colour TFT
Backlight Adjustable brightness
Power supply Type-C port (5V/1A)
Battery 3.7V 1500mAh lithium-ion, rechargeable
Battery life Up to 4 hours of continuous operation
Weight ≈186g
Dimensions ≈90 x 142 x 27.5 mm
Real-time sampling rate 48MSa/s
Analog bandwidth 10MHz
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)

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