🔧 FNIRSI DST-210 Handheld 3-IN-1 Multimeter Oscilloscope Signal Generator

Professional 3-in-1 Test Instrument

The FNIRSI DST-210 is a compact, high-performance handheld instrument that combines a True RMS Digital Multimeter, 10 MHz Digital Oscilloscope, and DDS Signal Generator into a single portable device. Designed for electronics engineers, technicians, laboratories, educational institutions, industrial maintenance, and advanced hobbyists, it significantly reduces the need for multiple standalone instruments.

Its ergonomic design, intuitive rotary selector, dedicated function buttons, and bright 2.8-inch TFT color display provide a convenient and efficient user experience in both laboratory and field applications.

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⭐ Key Features

• 🔹 3-in-1 multifunction instrument
• 🔹 True RMS Digital Multimeter
• 🔹 10 MHz Digital Oscilloscope
• 🔹 DDS Signal Generator
• 🔹 48 MSa/s real-time sampling
• 🔹 19,999-count high-resolution display
• 🔹 Large 2.8" TFT color LCD
• 🔹 USB Type-C charging
• 🔹 Built-in rechargeable 3000 mAh battery
• 🔹 Waveform storage and data hold
• 🔹 Auto / Normal / Single trigger modes
• 🔹 Adjustable screen brightness
• 🔹 Compact handheld design

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📊 Technical Specifications

General

• Manufacturer: FNIRSI
• Model: DST-210
• Device Type: 3-in-1 Test Instrument
• Display: 2.8" TFT Color LCD
• Display Resolution: 19,999 Counts
• Battery: 3000 mAh Rechargeable Lithium Battery
• Charging Interface: USB Type-C (5V/1A)
• Languages: Chinese / English
• Weight: Approx. 300 g
• Dimensions: Approx. 177.4 × 87.5 × 34.5 mm

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📈 Oscilloscope Specifications

• Analog Bandwidth: 10 MHz
• Real-Time Sampling Rate: 48 MSa/s
• Input Impedance: 1 MΩ
• Coupling Modes:
  • AC
  • DC
• Vertical Sensitivity:
  • 10 mV/div to 10 V/div
• Probe Support:
  • 1× Probe
  • 10× Probe
• Maximum Input Voltage:
  • 80 Vpp (1× Probe)
  • 800 Vpp (10× Probe)
• Trigger Modes:
  • Auto
  • Normal
  • Single
• Waveform Hold
• Curve Recording
• Infinite Afterglow Display

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📟 Digital Multimeter Functions

True RMS measurement of:

• DC Voltage
• AC Voltage
• DC Current
• AC Current
• Resistance
• Capacitance
• Frequency
• Temperature
• Diode Test
• Continuity Test
• Live Wire Detection

Maximum Measurement Ranges:

• DC Voltage: 1000 V
• AC Voltage: 750 V
• AC/DC Current: 9.999 A

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🎛 DDS Signal Generator

Built-in programmable DDS signal generator featuring:

• Frequency Range:
  • 0–50 kHz
• Output Amplitude:
  • 0.1–3.0 V
• Duty Cycle:
  • 0–100% (adjustable)
• Supports 13 waveform types, including:
  • Sine
  • Square
  • Triangle
  • Sawtooth
  • Pulse
  • Half-wave
  • Step
  • and additional programmable waveforms

Ideal for testing analog circuits, amplifiers, filters, PWM circuits, sensors, and embedded electronics.

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💡 Advantages

✅ Three professional instruments in one compact device

✅ Portable and lightweight

✅ High measurement accuracy

✅ Real-time waveform visualization

✅ Suitable for laboratory and field service

✅ True RMS technology

✅ DDS signal generation without additional equipment

✅ USB-C charging

✅ Long battery life

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📦 Package Includes

• FNIRSI DST-210
• Oscilloscope Probe
• Multimeter Test Leads
• Alligator Clip Probe
• USB Type-C Charging Cable
• User Manual
• Retail Packaging

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🏭 Typical Applications

• Electronic circuit diagnostics
• Power supply troubleshooting
• Embedded system development
• Automotive electronics
• Industrial maintenance
• Educational laboratories
• Engineering research
• PCB repair
• Audio equipment testing
• Communication equipment servicing

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Why Choose the FNIRSI DST-210?

The FNIRSI DST-210 combines the functionality of three essential electronic instruments into a single compact handheld device. With a 10 MHz oscilloscope, 48 MSa/s sampling rate, 19,999-count True RMS multimeter, and DDS signal generator, it delivers outstanding performance for professional diagnostics, troubleshooting, education, and electronics development while remaining lightweight and portable.