Question 1

Is this a true 100MHz oscilloscope, and is it suitable for a beginner?**

Accepted Answer

The FNIRSI 1013D Plus has a hardware bandwidth of 100MHz, but real-world performance can be affected by the probes and using both channels. It's a fantastic *value* for viewing digital signals and power electronics. For a complete beginner, be aware: its power is in portability and cost-saving, not in polished ease-of-use. Many new users recommend supplementing the manual with online video tutorials.

Question 2

How durable is it, and what about the included probes?**

Accepted Answer

The main unit has a solid build for portable use, with a high-quality touchscreen. However, a common sentiment in user communities is that the standard included probes feel cheap. Many experienced buyers immediately invest in higher-quality passive probes. The 100X high-voltage probe, crucial for its advertised use, is generally well-regarded for occasional safe measurements.

Question 3

Can I accurately measure small DC voltages or audio signals with this scope?**

Accepted Answer

This is a key limitation noted by advanced users. The 1013D Plus has noticeable noise on low-level DC signals, making it poorly suited for precision analog work like audio amplifier tuning or low-voltage sensor calibration. It excels at digital logic, switching power supplies, and other applications where noise is less critical. If your primary need is high-precision analog, a traditional bench oscilloscope is a better fit.

Question 4

What's the real-world battery life, and how does it handle being a portable tool?**

Accepted Answer

Users report getting between 4-5 hours of continuous use on a full charge, which is sufficient for most field service sessions. Its biggest praised benefit is true portability—it's a full-featured scope that fits in a toolbag. Techs on YouTube and Reddit highlight its use for quick diagnostics on motor drives, solar inverters, and automotive circuits where dragging a bench scope isn't practical.

Question 5

How does it compare to a used brand-name bench scope like a Rigol?**

Accepted Answer

This is a frequent pre-purchase question. The FNIRSI wins on portability and includes a high-voltage probe. A used Rigol bench scope (like the DS1054Z) will typically offer better software, lower noise, more advanced features, and a larger community for support. The choice boils down to your priority: if you need to move around, the 1013D is compelling. If your work is primarily at a bench, a used brand-name scope often provides better performance and long-term satisfaction.

FNIRSI 1013D Plus Oscilloscope - Portable Handheld Tablet Oscilloscope with 100X High Voltage Probe, 2 Channels 100Mhz Bandwidth 1GSa/s Sampling Rate 7" TFT LCD Touch Screen

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