FNIRSI

When I first opened my FNIRSI multimeter, I was confused seeing only one input channel. It matters because most multimeters have multiple jacks for measuring voltage, current, and resistance. This single-channel design is actually a clever safety feature. It forces you to use the correct probe setup for each measurement, which helps prevent dangerous mistakes … Read more

FNIRSI LC1020E vs FNIRSI LCR-ST2: Best LCR Meter for Precision Component Testing? I’ve spent time with both the FNIRSI LC1020E 100kHz LCR Meter and the FNIRSI LCR-ST2 100kHz LCR ESR Meter Tweezer, and the choice really comes down to how you work. The LC1020E is a benchtop-style unit with a 19,999-count display and a 2.8″ … Read more

You want to change the sampling rate on your FNIRSI multimeter, but the option simply isn’t there. This is frustrating when you are trying to capture a fast-changing signal or a brief voltage spike. The core reason is that FNIRSI locks the sampling rate to keep the measurement stable and the price low. A fixed … Read more

You might wonder if you can control your FNIRSI multimeter from your computer over USB. This matters because remote logging and automation can save you hours of manual readings. Most FNIRSI models use a proprietary chip that lacks standard SCPI commands. I discovered this the hard way when my meter refused to talk to common … Read more

Getting your FNIRSI multimeter manual in English can feel frustrating when the box only has Chinese. I have been there myself, and it is important because you need clear instructions for safety and accuracy. Many people do not realize that FNIRSI provides English manuals directly on their official website and through authorized sellers. I found … Read more

You just got your FNIRSI multimeter and noticed its function generator stops at 50 kHz. This limit might seem low, but it is important for What the tool can really do. That 50 kHz cap is a deliberate design choice for stability and cost. It keeps the signal clean and reliable for audio circuits, sensor … Read more

I often get asked how to enable battery saver mode on an FNIRSI multimeter. This feature is crucial for extending battery life during long projects or field work. Most FNIRSI models, like the 101L, automatically enter a sleep state after about 15 minutes of inactivity. I have found this prevents unexpected dead batteries when you … Read more

You just bought a new FNIRSI multimeter, but the display has confusing symbols with no clear explanation in the manual. This makes it hard to trust your readings or use the tool correctly. Many users feel frustrated when key display meanings are left out, often because manuals assume prior knowledge. I found that online forums … Read more

FNIRSI DST-201 vs FNIRSI DST-210: Best Oscilloscope Multimeter for Field Service? I’ve been testing two of FNIRSI’s latest handheld oscilloscope multimeters side-by-side: the DST-201 3-in-1 (with its built-in DDS signal generator) and the upgraded DST-210 2-in-1 (boasting a much faster 48MS/s sample rate and 10MHz bandwidth). Both promise to replace a handful of tools in … Read more

When you use the signal generator function on your FNIRSI multimeter, you might wonder if you must turn it off by hand each time. This matters because leaving it on can drain your battery faster than you expect. The truth is, most FNIRSI models do not automatically shut down the signal generator when you switch … Read more