FNIRSI DPOS350P 4-in-1 Multifunction Tablet Oscilloscope - Signal Generator - Spectrum & Frequency Response Analyzer (350MHz/1GSPS)

The FNIRSI DPOS350P is a high performance all in one portable oscilloscope that combines multiple test instruments into a single compact device, including a 350MHz dual channel oscilloscope, 50MHz signal generator, spectrum analyzer, and frequency response analyzer. Its large 7″ capacitive touchscreen provides clear waveform display with intuitive touch control, making complex signal testing easier and more accessible for engineers, technicians, makers, and educators.

Built for precision analysis with fast sampling, wide bandwidth, and advanced trigger and measurement functions, the DPOS350P delivers robust performance in R&D, repair, manufacturing, and field diagnostics. With overvoltage protection up to 400V and fast QC18W charging, it’s engineered for both reliability and portability.

Highlights:

• Combines oscilloscope, signal generator, spectrum analyzer, and frequency response analyzer in one device.
• 350MHz analog bandwidth and 1GSPS real time sampling for accurate signal capture.
• 7″ IPS high resolution touchscreen (1024×600) with smooth waveform display.
• Built in 50MHz signal generator with standard & custom waveform support.
• High voltage input protection (up to 400V) and fast QC18W charging.
• Stores up to 500 waveform records and 90 screenshots, with USB data export.

Specifications:

General

• Model: FNIRSI DPOS350P.
• Display: 7″ IPS touchscreen (1024×600).
• Battery: 3.7V, 8000mAh (~3h operation).
• Charging: QC18W, USB C (12V/1.5A).
• Standby: ~3h.
• Languages: English, Chinese, Russian, Portuguese.
• High-Voltage Protection: Up to 400V.
• Data Storage: 500 waveforms, 90 screenshots.
• Interface: USB data export.
• Dimensions: ~190×128×37mm.
• Auto-Off Timer: Off ~15-60min.

Oscilloscope

• Channels: 2 analog.
• Bandwidth: 350MHz.
• Real-Time Sample Rate: 1GSPS.
• Waveform Refresh: ~50,000wfm/s.
• Memory Depth: ~47-60Kpts.
• Vertical Sensitivity: 2mV - 20V (1X).
• Time Base Range: 5ns - 50s.
• Input Impedance: 1MΩ // 14pF.
• Trigger Modes: Auto / Normal / Single.

Signal Generator

• Waveforms: 14 standard + custom.
• Frequency Range: 0-50MHz (sine).
• Amplitude: 0-5Vpp.
• Offset: ±2.5V.

Spectrum Analyzer

• Frequency Range: 200kHz - 350MHz.
• Display: Spectrum & waterfall modes.

Frequency Response Analyzer

• Excitation Range: 10Hz - 50MHz.
• Cursor Measurements: Frequency / gain / phase.

Ideal For:

• 🔧 Electronics R&D & circuit development.
• 🔍 Signal analysis & diagnostics.
• 📡 RF, EMI & high-frequency testing.
• 🛠️ Repair shops & service labs.
• 🎓 Education & hands-on engineering training.
• 📊 Production line testing & quality control.