Description
Product Overview
The FNIRSI 3 in1 Oscilloscope/Multimeter/DDS Signal Generator (model XD-2C23T) is a multifunctional test instrument designed for professionals who need flexibility without sacrificing performance. It integrates a dual‑channel oscilloscope with a 10 MHz bandwidth, a high‑resolution 4‑digit multimeter capable of 10000 counts, and a DDS‑based signal generator that can output seven waveform types up to 2 MHz. The device is powered by a 3000 mAh lithium‑ion battery, providing up to six hours of continuous operation, and features a 2.8‑inch 320×240 HD LCD for clear waveform visualization.
Key specifications include a real‑time sampling rate of 50 MSa/s, vertical sensitivity ranging from 200 mV/div to 10 V/div, and automatic measurement functions such as peak‑to‑peak, RMS, frequency, and duty‑cycle detection. The built‑in high‑voltage protection module safeguards the instrument against accidental over‑voltage, while the FPGA‑MCU‑ADC architecture ensures fast data processing and reliable signal integrity.
Physically, the unit measures 10.08 × 5.24 × 3.46 inches and weighs only 1.57 lb, making it highly portable for field service, on‑site troubleshooting, and classroom demonstrations. Connectivity is provided via a USB‑C port that supports data transfer, firmware updates, and charging at 5 V/1 A. Users can save captured waveforms with a single click and later upload them to a PC for detailed analysis.
![[Product front view showing all components]](https://www.flameshop.store/wp-content/uploads/2026/08/15f9e737d3dd4572b896fa620b417f5d.jpg)
Usage
This instrument is suited for a wide range of applications across electronics design, manufacturing, education, and maintenance. In a laboratory setting, engineers can quickly prototype circuits, verify signal integrity, and perform detailed measurements without switching between separate devices. The built‑in multimeter functions allow for quick verification of voltage, current, resistance, capacitance, and temperature, streamlining the diagnostic workflow.
Field technicians benefit from the handheld form factor and long‑lasting battery, enabling them to diagnose equipment failures on the factory floor, in automotive repair bays, or in remote installations. The signal generator can be used to inject test signals into circuits, simulate sensor outputs, or drive actuators for system validation. Its seven waveform options—including sine, square, triangle, full‑wave, half‑wave, noise, and DC—cover most common testing scenarios.
Educators can employ the device as a teaching aid, demonstrating real‑time waveform capture, frequency analysis, and multimeter readings in a single lesson. The intuitive user interface, combined with the high‑resolution LCD, makes complex concepts accessible to students at various skill levels.
Why Choose Us
Choosing the FNIRSI 3 in1 solution means investing in a reliable, all‑in‑one instrument that reduces the need for multiple separate tools, saving both space and cost. The device is built with a robust FPGA‑MCU‑ADC core, delivering fast processing and accurate measurements even in noisy environments. Our rigorous quality assurance program includes multiple stress tests, calibration verification, and compliance with international safety standards.
We stand behind the product with a comprehensive warranty and responsive technical support. Our after‑sales service includes firmware updates that introduce new features and improve performance over time. Customers also gain access to an online knowledge base, tutorial videos, and a community forum where they can share tips and troubleshoot issues with peers.
Furthermore, the FNIRSI brand is recognized for delivering high‑performance test equipment at competitive prices, backed by a global network of distributors and service centers. This ensures that you receive genuine parts, timely repairs, and localized assistance wherever you operate.
Key Features
- Dual‑channel oscilloscope with 10 MHz bandwidth and 50 MSa/s real‑time sampling for fast signal capture.
- Integrated 4‑digit multimeter offering 10000‑count resolution across voltage, current, resistance, capacitance, and temperature.
- DDS signal generator with seven waveform types up to 2 MHz, adjustable amplitude and duty cycle for versatile testing.
- Portable design powered by a 3000 mAh rechargeable battery, providing up to six hours of continuous operation.
- Dedicated customer support, firmware updates, and a 12‑month warranty for peace of mind.
FAQ
What is the maximum input voltage the oscilloscope can handle?
The oscilloscope channel can safely measure signals up to ±400 V, with built‑in protection circuitry to prevent damage from accidental over‑voltage.
Can I export captured waveforms to a PC?
Yes. Using the USB‑C connection, you can transfer saved waveform images or raw data files to a computer for further analysis or documentation.
How long does the battery last during continuous use?
The 3000 mAh lithium‑ion battery provides approximately six hours of continuous operation when the oscilloscope is running at full sampling rate. Standby mode can extend the battery life significantly.
Is the device calibrated out of the box?
All units are factory‑calibrated to meet the specified accuracy levels. Calibration certificates are included with each purchase.
What warranty and support options are available?
The product comes with a 12‑month limited warranty covering manufacturing defects. Our technical support team is available via email and phone, and we provide regular firmware updates to enhance functionality.





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