FNIRSI DST-201 Portable Digital Oscilloscope with DMM & DDS Signal Generator

The FNIRSI DST-201 is a compact and multifunctional handheld oscilloscope designed for both hobbyists and professionals. Combining a 1 MHz bandwidth oscilloscope, full-featured digital multimeter (DMM), and a 10 kHz DDS signal generator into one portable unit, the DST201 is a versatile diagnostic tool ideal for fieldwork, education, and electronics troubleshooting. Its built-in battery, color IPS display, and intuitive interface make it a reliable companion for on-the-go diagnostics.

Product Features:

• 3-in-1 Functionality: Combines oscilloscope, digital multimeter, and function generator in a single device.
• 1 MHz Bandwidth Oscilloscope: 5 MSa/s sample rate, 10 mV/div sensitivity, and real-time waveform capture modes (Auto, Normal, Single).
• Wide Timebase: Adjustable from 500 ns/div to 20 s/div for detailed observation of both fast and slow signals.
• Built-in DDS Generator: Outputs 13 standard waveforms up to 10 kHz, including sine, square, triangle, noise, half-wave, and more.
• 2.8” IPS Display: Crisp 320x240 resolution with rich color contrast and wide viewing angles.
• Rechargeable Battery: 3000 mAh battery offers up to 4 hours of continuous operation.
• Auto Setup Function: Automatically configures parameters for periodic signals to simplify measurements.
• Integrated Digital Multimeter: Measures AC/DC voltage, current, resistance, capacitance, frequency, temperature, and continuity.

Technical Specifications:

• Model: FNIRSI DST-201
• Oscilloscope Bandwidth: 1 MHz
• Max Sample Rate: 5 MSa/s
• Vertical Sensitivity: 10 mV/div – 10 V/div
• Input Impedance: 1 MΩ (AC/DC coupling)
• Timebase Range: 500 ns/div – 20 s/div
• Trigger Modes: Auto / Normal / Single
• Trigger Edge: Rising / Falling
• Cursor Measurements: Frequency / Period / Amplitude
• Max Input Voltage: 1:1 Probe: 80Vp-p (±40V), 10:1 Probe: 800Vp-p (±400V)
• Display: 2.8” TFT, 320 × 240 pixels
• Battery: 3000 mAh, USB Type-C charging (5V 1A)
• Automatic Measurements: Max, Min, Avg, RMS, Amp, Freq, Period, Duty
• Signal Generator: 1 channel, 0.1 V–3.0 V, 13 waveform types, up to 10 kHz
• Dimensions: 178 × 88 × 35 mm
• Weight: 300 g

Built-in Signal Generator:

• Output Frequency: Up to 10 kHz
• Amplitude: 0.1 V – 3.0 V
• Waveforms: Sine, Square, Triangle, Noise, Half-wave, Full-wave, DC, and more (13 total)

Built-in Multimeter Functions:

• DC Voltage: 1.9999V / 19.999V / 199.99V / 1000V ±(0.5%+3)
• AC Voltage: 1.9999V / 19.999V / 199.99V / 750.0V ±(1%+3)
• DC Current: 19.999mA / 199.99mA / 1.9999A / 9.999A ±(1.2%+3)
• AC Current: 19.999mA / 199.99mA / 1.9999A / 9.999A ±(1.5%+3)
• Resistance: 19.999 MΩ / 1.9999MΩ / 199.99KΩ / 19.999KΩ, ±(0.5%+3)
• Resistance: 1.9999 KΩ / 199.99Ω ±( 2.0% +3)
• Capacitance: 999.9 mF / 99.99 mF / 9.999 mF / 999.9 nF / 99.99 nF / 9.999 nF ±(2.0%+5)
• Capacitance: 9.999 nF to 99.99 mF ±(5.0% +20)
• Frequency: 9.999 Hz to 9.999 MHz ±(0.1%+2)
• Temperature: -55~1300°C ±(2.5%+5)
• Continuity Test: With buzzer
• Diode Test: Supported
• Display Count: 19999 counts

Package Includes:

• 1 x FNIRSI DST-201 Oscilloscope
• 1 x BNC to Alligator Probe
• 1 x Multimeter Test Lead Set
• 1 x USB Charging Cable
• 1 x User Manual

Applications:

• Electronics testing and diagnostics
• Embedded system debugging
• Signal tracing and waveform capture
• Educational labs and training
• Field service and repair tasks

Important Safety Notes:

• Ensure proper probe configuration and voltage ranges when measuring high voltage signals.
• Use only certified chargers and cables for battery charging.
• Do not operate in wet or explosive environments.
• Allow the device to cool down after extended use.