FNIRSI® DST-210 Handheld 3-IN-1 Multimeter Oscilloscope 10MHz & Signal Generator

FNIRSI DST-210

Handheld 3-IN-1 Multimeter Oscilloscope Signal Generator

Brand: FNIRSI

Product Description

The FNIRSI DST-210 is a compact handheld 3-in-1 electronic test instrument that integrates a digital oscilloscope, a digital multimeter, and a signal generator into one portable device. It is designed for electronics troubleshooting, maintenance, education, and field service applications. The lightweight design and simple operation make it suitable for technicians, students, and hobbyists.

Key Features

• 3-in-1 device: oscilloscope, digital multimeter, and signal generator
• Compact handheld design for portable use
• Clear color display for waveform and measurement viewing
• Built-in rechargeable lithium battery
• USB charging interface
• Easy operation suitable for beginners and professionals

Oscilloscope Specifications

• Channels: 1 channel
• Bandwidth: Suitable for low-frequency electronic signal testing
• Sampling Mode: Real-time sampling
• Input Voltage Range: Suitable for low-voltage signal measurements
• Trigger Modes: Auto and Normal
• Measurement Functions: Frequency, duty cycle, peak-to-peak voltage
• Sampling Rate
  • DST-210: 48 MSa/s 
    
• Analog Bandwidth
  • DST-210: 10 MHz 
    
• Input Impedance
  • 1 MΩ
• Coupling Mode
  • AC / DC
• Test Voltage Range
  • 1:1 probe: 80 Vpp (±40 V)
  • 10:1 probe: 800 Vpp (±400 V)
• Vertical Sensitivity
  • 10 mV/div to 10 V/div (x1)
• Vertical Displacement
  • Adjustable with on-screen indicators
• Horizontal Time Base
  • DST-210: 50 ns to 20 s 
    
• Trigger Mode
  • Auto / Normal / Single
• Trigger Type
  • Rising edge and falling edge
• Trigger Level
  • Adjustable with indicators
• Waveform Freeze
  • Supported (HOLD function)
• Automatic Measurements
  • Max
  • Min
  • Average (Vavg)
  • RMS
  • Vpp
  • Frequency
  • Period
  • Duty cycle

Digital Multimeter Specifications

• DC Voltage
  • 1.9999 V / 19.999 V / 199.99 V / 1000 V
• AC Voltage
  • 1.9999 V / 19.999 V / 199.99 V / 750 V
• DC Current
  • 19.999 mA / 199.99 mA / 1.9999 A / 9.999 A
• AC Current
  • 19.999 mA / 199.99 mA / 1.9999 A / 9.999 A
• Resistance
  • 19.999 MΩ / 1.9999 MΩ / 199.99 kΩ / 19.999 kΩ
  • 1.9999 kΩ / 199.99 Ω
• Capacitance
  • 999.9 µF / 99.99 µF / 9.999 µF
  • 999.9 nF / 99.99 nF / 9.999 nF
  • 9.999 mF / 99.99 mF
• Frequency Measurement
  • 9.999 MHz / 999.9 kHz / 99.99 kHz / 9.999 kHz
  • 999.9 Hz / 99.99 Hz / 9.999 Hz
• Temperature Measurement
  • −55°C to 1300°C
  • −67°F to 2372°F
• Diode / Continuity Test
  • Supported
• Single Probe AC Voltage Measurement (LIVE)
  • Supported
• Auto-ranging for convenient operation

Signal Generator Specifications

• Generator Type: DDS signal generator
• Output Waveforms: Sine, square, triangle
• Frequency Range: Suitable for basic signal testing
• Output Amplitude: Adjustable
• Output Waveforms
  • Supports 13 types of waveform output
• Waveform Frequency
  • DST-210: 0 to 50 kHz
  • DST-201: 0 to 10 kHz
• Waveform Amplitude
  • 0.1 V to 3.0 V
• Square Wave Duty Cycle
  • 0% to 100%
  • Square and sawtooth wave duty cycle adjustable

Display & Power

• Display: Color TFT screen
• Battery: Built-in rechargeable lithium battery
• Operating Time: Several hours of continuous use
• Charging: USB interface

Physical Specifications

• Design: Handheld portable enclosure
• Lightweight and easy to carry
• Durable housing for daily technical use

Applications

• Electronics troubleshooting and repair
• Educational and training use
• Embedded systems testing
• Field maintenance and service work
• DIY and hobby electronics projects

Package Contents

• FNIRSI DST-210 handheld tester
• Test leads & Prob
• USB charging cable
• User manual

Additional Confirmed Specifications

• Digital Multimeter: True RMS, 19999-count (4.5-digit) resolution
• Display: 2.8-inch TFT color screen
• Battery: 3000mAh built-in rechargeable battery, up to 15 hours of standby time
• Oscilloscope voltage protection: up to ±400V

DST-210 vs a Bench Setup: When You Need a Portable Oscilloscope for Electronics Repair

The DST-210's 1-channel, 10MHz oscilloscope and 50kHz signal generator are built for portability and everyday troubleshooting, not for replacing a full bench setup on demanding RF or multi-channel work. For projects that need 2-channel capture, higher bandwidth, or a dedicated arbitrary waveform generator, RAM Electronics also carries the RIGOL DS1102Z-E 2-Channel Digital Storage Oscilloscope (100MHz) and the RIGOL DG1022U Function/Arbitrary Waveform Generator (25MHz) as bench-grade options. For a dedicated handheld multimeter or clamp meter alongside the DST-210, see the UNI-T UT89X True RMS Digital Multimeter or the UNI-T UT204+ AC/DC Clamp Meter.

Frequently Asked Questions

What does "3-in-1" mean for the DST-210?

It means one handheld device switches between three functions — oscilloscope, digital multimeter, and DDS signal generator — using a rotary dial, instead of needing three separate instruments.

What's the difference between the DST-210 and the DST-201?

Both share the same multimeter and signal generator functions. The DST-210 has a faster oscilloscope: 48 MSa/s sampling and 10MHz analog bandwidth, versus the DST-201's 5 MSa/s and 1MHz bandwidth.

Can this replace a full bench oscilloscope?

For everyday troubleshooting and field diagnostics, yes. For 2-channel capture, higher bandwidth, or heavier lab work, a dedicated bench oscilloscope like the RIGOL DS1102Z-E is a better fit.

Does it need external probes to work?

Yes — the oscilloscope and signal generator connect via BNC probes (included), and the multimeter uses standard test leads (also included).

Need an oscilloscope, multimeter, and signal generator without carrying three separate tools? The FNIRSI DST-210 covers all three in one handheld device — a practical pick for a repair bench or a student lab kit this new term. Contact RAM Electronics to check availability and get your FNIRSI DST-210 with a 1-year warranty.