The FNIRSI DPOS350P is a powerful, portable 4-in-1 electronic testing instrument that integrates an oscilloscope, spectrum analyzer, frequency response analyzer, and DDS signal generator into a single professional-grade device.

Designed for industrial, research, maintenance, and field applications, it delivers high-speed signal analysis with a 350MHz bandwidth, 1GSPS sampling rate, and 60Kpts memory depth, all displayed on a vivid 7-inch IPS touchscreen for intuitive operation and clear waveform visualization.

With dual analog channels, advanced triggering, FFT analysis, and a built-in rechargeable battery, the DPOS350P offers lab-level performance in a compact, portable form factor.

Key Features:

• 4-in-1 Multifunction Design
  Oscilloscope, Spectrum Analyzer, Frequency Response Analyzer, and DDS Signal Generator.
• High-Performance Signal Analysis
  350MHz bandwidth, 2 analog channels, and up to 1GSPS sampling rate.
• 7-Inch IPS Touchscreen
  1024 × 600 resolution with grayscale, colour temperature, and digital fluorescence modes.
• Advanced Measurement Functions
  FFT analysis, X-Y mode, ZOOM time base, auto calibration, and intelligent triggering.
• High-Resolution Mode
  8-16 bit resolution with one-key auto adjustment.
• Waveform & Screenshot Storage
  Stores up to 500 waveform groups and 90 screenshots.
• Portable & Rechargeable
  Built-in 8000mAh lithium battery with QC18W Type-C fast charging.
• Multi-Language Support
  English, Chinese, Russian, and Portuguese.
• Compact & Durable Design
  Air-cooled housing with USB expansion interface for extended functionality.

Integrated Function Details

Oscilloscope:

• Bandwidth: 350MHz
• Sampling Rate: 1GSPS (max)
• Time Base: 5ns - 50s
• Vertical Sensitivity: 2mV - 20V (1X)
• Trigger Modes: Auto, Normal, Single (rising/falling edge)

DDS Signal Generator:

• Waveforms: 14 types
• Frequency Range: 0 - 50MHz
• Output Amplitude: 0 - 5Vpp

Spectrum Analyzer:

• Frequency Range: 200kHz - 350MHz
• FFT Length: 4K - 32K
• Display: Waterfall & 3D waterfall charts

Frequency Response Analyzer:

• Frequency Range: 100Hz - 50MHz
• Modes: Single or cyclic sweep
• Output Amplitude: 0 - 5Vpp

Specifications:

• Input Impedance: 1M / 14pF
• DC Accuracy: 2%
• Time Accuracy: 0.01%
• Probe Attenuation: 1X / 10X / 100X
• Hardware Bandwidth Limit: 150M / 20M
• Max BNC Input Voltage: 400V (1X probe)
• Power Consumption: 10W
• Auto Power-Off: 15 min - 1 hour
• Dimensions: 190 × 128 × 37 mm

Safety & Usage Notes:

• Always connect probe ground clips together to avoid potential differences
• Use 100X probes for high-frequency or high-voltage measurements
• Do not exceed maximum BNC input tolerance
• Use only the supplied charger to avoid damage

Ideal For:

Engineers, technicians, educators, electronics repair professionals, researchers, and advanced hobbyists requiring high-accuracy, multi-function signal analysis in both lab and field environments.

What's in the box
1 x DPOS350P Host
1 x QC18W Fast Charger (US or EU Plug)
2 x 350MHz Probes
1 x Storage Bag
1 x Alligator Clip
1 x USB Data Cable
1 x User Manual
1 x Packing Box