Description
The FNIRSI DSO-TC4 3-in-1 Upgrade Portable Digital Oscilloscope is a multifunctional, compact device designed for electronics engineers, technicians, and hobbyists. Combining a digital oscilloscope, transistor/component tester, and signal generator, it offers versatile functionality for testing, measurement, and analysis in a portable form factor.
Equipped with a 10MHz bandwidth and 48MSa/s sampling rate, the oscilloscope captures analog and digital signals with precision, providing clear waveform visualization. The integrated transistor detector supports testing NPN/PNP transistors, diodes, capacitors, resistors, MOSFETs, and other components, making it ideal for electronics troubleshooting and prototyping. The built-in signal generator enables testing and calibration of circuits with variable output signals, adding versatility to this all-in-one device.
The DSO-TC4 features a high-resolution display for easy observation of waveforms and component readings. Its portable, lightweight design makes it convenient for fieldwork, labs, and desktop applications. The intuitive interface ensures quick operation, allowing users to measure and analyze electronic signals efficiently.
Key Features:
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3-in-1 functionality: oscilloscope, component tester, and signal generator
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10MHz bandwidth and 48MSa/s sampling rate for precise waveform capture
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Measures transistors (NPN/PNP), diodes, resistors, capacitors, and MOSFETs
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Built-in signal generator for circuit testing and calibration
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High-resolution display for clear waveform and component readings
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Portable, compact, and lightweight for easy use
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User-friendly interface for fast and accurate measurements
The FNIRSI DSO-TC4 is perfect for electronics testing, circuit troubleshooting, and educational applications. Its multifunctionality reduces the need for multiple instruments, saving time and workspace. Engineers and hobbyists can quickly test components, observe signals, and generate reference waveforms in one compact device.
Applications:
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Analog and digital signal analysis
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Testing transistors, diodes, resistors, and capacitors
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Circuit prototyping and verification
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Signal generation for calibration and experimentation
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DIY electronics projects and troubleshooting
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Educational labs and electronics training



















