FNIRSI DSO-PRO Handheld mini portable digital oscilloscope

FNIRSI DSO PRO Handheld Digital OscilloscopeSingle-Channel Oscilloscope | 5MHz Bandwidth | 20MSa/s Sampling Rate | 2.4-inch Display | MicroUSB Charging

The FNIRSI DSO PRO is a compact single-channel digital oscilloscope designed for portable waveform observation and basic signal analysis. Its handheld format makes it suitable for quick diagnostics, hobby electronics and service tasks where a lightweight oscilloscope is required.

The device combines a built-in display, rechargeable battery and standard BNC connector in a pocket-size body. It is suitable for checking signal presence, observing waveform shape and performing basic measurement tasks during bench work or mobile use.

Key Features

• Single-channel operation: suitable for basic waveform monitoring and signal checking.
• Portable design: compact housing supports convenient handheld use.
• Standard BNC connector: compatible with common oscilloscope probes.
• Built-in display: integrated screen allows direct waveform observation.
• Multiple trigger modes: supports automatic, normal and single trigger operation.
• AC/DC coupling: suitable for different signal measurement conditions.
• Rechargeable battery: built-in lithium battery supports portable operation.
• Snapshot saving: supports waveform image saving for later review.

Technical Specifications

• Analog bandwidth: 5MHz
• Maximum real-time sampling rate: 20MS/s
• Vertical sensitivity: 50 mV/div to 200 V/div
• Horizontal time base range: 50 s/div to 250 ns/div
• Maximum input voltage: 40 V (1X probe), 800 V (10X probe)
• Storage depth: 40KB
• Input resistance: 1MΩ
• ADC precision: 8 bits
• Coupling mode: AC/DC
• Trigger mode: Single, Normal, Automatic
• Trigger edge: Ascending / descending edge
• External trigger voltage: 0–40 V
• Display: 2.4 inch, 320 × 240
• Power supply: 1200 mAh lithium battery
• Dimensions: 107 × 70 × 24 mm
• Weight: 150 g
• Interface: MicroUSB for charging

Applications

• Portable signal checking
• DIY electronics projects
• Basic waveform observation
• Quick bench diagnostics
• Educational use

Package Contents

• 1 * Oscilloscope
• 1 * Probe
• 1 * USB Cable
• 1 * User Manual

The FNIRSI DSO PRO provides a compact and practical solution for portable waveform observation, quick diagnostics and basic electronics testing.