FNIRSI has made a name for itself by offering affordable, multi-functional handheld devices that combine oscilloscopes, multimeters, and signal generators.
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Of their notable models, the 2C23T and the 2C53T, cater to both professionals and hobbyists. While they share a similar design and purpose, key differences in their specifications and features can influence your choice.
Comparison Table: FNIRSI 2C23T vs. 2C53T
| Feare | FNIRSI 2C23T | FNIRSI 2C53T |
|---|---|---|
| Oscilloscope Bandwidth | 10 MHz | 50 MHz |
| Sampling Rate | 50 MSa/s | 250 MSa/s |
| Storage Depth | 32 KB | 1 KB |
| Vertical Sensitivity | 20 mV/div โ 10 V/div (X1) | 10 mV/div โ 10 V/div (X1) |
| Time Base Range | 50 ns โ 10 s | 10 ns โ 20 s |
| Display Modes | YT/Scroll | YT/Scroll/XY |
| Waveform Analysis | None | 8 basic operations + FFT |
| Cursor Measurement | None | Available |
| Multimeter Digits | 4 digits (10,000 counts) | 4.5 digits (20,000 counts) |
| DC Voltage Measurement | 9.999 V โ 999.9 V | 1.9999 V โ 1000 V |
| AC Voltage Measurement | 9.999 V โ 750.0 V | 1.9999 V โ 750.0 V |
| DC Current Measurement | 9999 ยตA โ 9.999 A | 19.999 mA โ 9.999 A |
| AC Current Measurement | 9999 ยตA โ 9.999 A | 19.999 mA โ 9.999 A |
| Resistance Measurement | 999.9 ฮฉ โ 99.99 Mฮฉ | 199.99 ฮฉ โ 19.999 Mฮฉ |
| Signal Generator Frequency | 1 Hz โ 2 MHz | 0 โ 50 kHz |
| Signal Types (Generator) | 7 | 13 |
FNIRSI 2C23T
The FNIRSI 2C23T is a compact 3-in-1 device that combines an oscilloscope, multimeter, and signal generator. It’s designed for basic diagnostic tasks and is particularly suitable for hobbyists and students.
Pros:
- Affordability: Priced well under โฌ100, making it accessible for beginners.
- Portability: Compact design allows for easy handling and transportation.
- Ease of Use: User-friendly interface with automatic detection for multimeter functions.
Cons:
- Limited Bandwidth: With a 10 MHz bandwidth, it’s not suitable for high-frequency applications.
- Basic Features: Lacks advanced waveform analysis tools like FFT and cursor measurements.
- Signal Generator Limitations: While it offers a frequency range up to 2 MHz, the signal quality may not meet professional standards.
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FNIRSI 2C53T
The FNIRSI 2C53T is an upgraded version of the 2C23T, offering enhanced features and improved performance. It’s designed to cater to more advanced diagnostic tasks, making it suitable for both professionals and serious hobbyists.
Pros:
- Enhanced Performance: Increased bandwidth of 50 MHz and a higher sampling rate of 250 MSa/s provide more accurate signal analysis.
- Advanced Features: Includes waveform analysis tools such as FFT, cursor measurements, and persistence mode.
- Improved Multimeter: Offers higher resolution with 4.5-digit readings and a broader range of measurements.
Cons:
- Reduced Signal Generator Frequency Range: The function generator’s frequency range is limited to 50 kHz, which is lower than the 2C23T.
- Price: Slightly more expensive than the 2C23T, though it offers additional features.
- Storage Depth: The storage depth is listed as 1 KB, which may be a typographical error or a limitation in certain modes.
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User Reviews
Users appreciate the 2C23T for its affordability and versatility. It’s considered a valuable tool for basic diagnostics and educational purposes. However, some users have noted limitations in its bandwidth and the quality of the signal generator output.
The 2C53T has received positive feedback for its enhanced performance and advanced features. Users find it suitable for more demanding applications and appreciate the improved oscilloscope capabilities. The main criticism revolves around the reduced frequency range of the signal generator compared to the 2C23T.
Summary
Both the FNIRSI 2C23T and 2C53T offer valuable features in a compact, portable design. Your choice between the two should depend on your specific needs:
- You are on a tight budget and require basic oscilloscope and multimeter functions.
- Higher function generator frequency (up to 2 MHz) is essential for your applications.
- You need enhanced oscilloscope performance with higher bandwidth and sampling rates.
- Advanced features like FFT analysis, X-Y mode, and persistence functions are important for your work.
