Master Electronics Testing with the FNIRSI DST-201 – A True 3-in-1 Multifunction Tool

The FNIRSI DST-201 is more than just a tool—it's your compact digital lab in the palm of your hand. Combining the power of a 1MHz bandwidth oscilloscope, a high-precision digital multimeter, and a signal/function generator, this 3-in-1 device is ideal for real-time signal capture, waveform testing, and multi-parameter measurement in both lab and field environments.

Crafted for engineers, educators, hobbyists, and repair professionals, the DST-201 makes circuit diagnostics effortless. From testing embedded systems and microcontroller I/O pins to debugging power rails, this compact device is versatile enough for both beginners and pros.

? Expanded Key Features & Technical Details:

1. ? 1MHz Digital Oscilloscope

• Capture and display waveforms with up to 1MHz analog bandwidth

• Visualize real-time signals from sensors, analog circuits, and microcontrollers

• Includes trigger functions and time base controls

• Ideal for low-frequency signal analysis, PWM debugging, and slow digital signals

2. ? True RMS Digital Multimeter

• Multiple modes: AC/DC Voltage, AC/DC Current, Resistance, Continuity, Diode, Frequency

• True RMS accuracy for precision in fluctuating waveforms

• Fast response time with high resolution digital display

• Supports auto and manual range selection

3. ? Function / Signal Generator

• Built-in DDS generator for generating standard waveforms: sine, square, triangle, and pulse

• Adjustable frequency, amplitude, and duty cycle

• Suitable for simulating sensor signals, driving logic circuits, and testing filters

4. ? Portable & Power-Efficient

• Built-in rechargeable battery with long operating time (USB Type-C charging)

• Lightweight and rugged design for easy transport and fieldwork

• Crisp TFT LCD screen with waveform & data visualization

? Use-Case Applications:

• ⚡ Troubleshooting DIY electronics, Arduino & Raspberry Pi projects

• ?️ Repair and diagnostics of home appliances, SMPS, and car electronics

• ? Education and practical labs for learning electronics

• ? Real-time waveform analysis in embedded or analog design

• ? Measuring voltage levels in IoT, robotics, and automation systems

? Why Engineers Love the FNIRSI DST-201:

• All essential tools in one device – No need to carry 3 separate instruments

• Saves space, reduces cost, and increases efficiency for mobile technicians

• Perfect for on-the-go field work, benchtop prototyping, or classroom learning

• Extremely user-friendly interface – easy for beginners to use, powerful for professionals

? Product Specifications Overview: