Fnirsi

Fnirsi Welcome to FNIRSI. Break the Norm, Technology Within Reach. Discover more: www.fnirsi.com

We craft innovative tools for testing, measuring, and understanding electronics
— empowering engineers, technicians, and makers around the world.

14/10/2026

Why design a resistor with almost zero resistance? Because on a PCB, the package can be more useful than its nominal resistance value.
A 0Ω resistor can bridge traces, select between board configurations, act as a placeholder for later tuning, or create a removable link between two circuits.
Install it to connect the path; leave it out to keep the path open. In practice, the component, probes, and contacts still add a small amount of resistance.

Share this with an electronics student or someone learning PCB design.

14/10/2026

A slow solder joint doesn't automatically need more heat.

12/10/2026

Need adjustable bench power without giving up half your workspace?

The FNIRSI DPS-150P provides up to 150W with a 0–30V / 0–5A adjustable output. It adds μA-level current readback for low-power testing and ≤10mVpp full-load ripple for stable circuit work.

PD3.1, QC, and DC inputs give you flexible power options, while programmable sweeps and Windows PC monitoring support repeatable testing.

👇 Curious how this works on your bench?
Check the details on the following
🌐 Office: https://fnirsi.top/4AuKHES
5% OFF! 🔥 code: 150P5

Save this unboxing or share it with someone building a compact electronics bench.

09/10/2026

Troubleshooting a board often means switching between a scope, a signal source, and a component tester.
The FNIRSI DSO-TC4 combines all 3-in-1 handheld device, with 10 MHz bandwidth, 48 MSa/s sampling, adjustable signal output, and automatic component identification with pinout display.
It’s designed for practical bench troubleshooting and portable repair work.

👇 Curious how this works on your bench?
Check the details on the following
🌐 Office: https://fnirsi.top/4dEAiwD
$17 OFF! 🔥 code: DTC417
🛒 Amazon: https://fnirsi.top/46SXxju

Save this demo or share it with someone who repairs electronics.

Small currents can tell a big story. The FNIRSI DPS-150P is a portable programmable DC power supply for board developme...
08/10/2026

Small currents can tell a big story.

The FNIRSI DPS-150P is a portable programmable DC power supply for board development, repair, and low-power testing. It provides adjustable 0–30V, 0–5A output with up to 150W, µA-level current readback, and 10mVpp full-load ripple performance.

Use CV/CC control, save up to six output profiles, switch between numeric and curve views, or connect to PC software for logging and programmable workflows. Compatible PD3.1/QC and DC input options make it easier to bring a controlled power source to the bench or into the field.

📌 Learn more & get yours here: https://fnirsi.top/4hKAEUM

Which project would you use it on first?

08/10/2026

Your board may be “asleep.” Its current draw still has a story.

The FNIRSI DPS-150P makes subtle standby-current changes easier to see—with μA-level readback and 10 mVpp low ripple.
Need more headroom? It delivers up to 30 V / 5 A / 150 W, with a 90° flip display and PC logging and control.
Power it from compatible PD/QC sources or a 5–32 V DC adapter—at the bench or on the move.

👇 Curious how this works on your bench?
Check the details on the following
🌐 Office: https://fnirsi.top/47qjnu6
OFF! 🔥 code:

What would you test first?

06/10/2026

A multimeter tells you a value. An oscilloscope shows how that value changes over time.

This 3-in-1 electronics tool combines:
• A 4½-digit True RMS multimeter
• An oscilloscope
• A signal generator
• 11 measurement modes
• 13 waveform outputs

A practical setup for electronics repair, testing, and troubleshooting.

👇 Curious how this works on your bench?
Check the details on the following
🌐 Office: https://fnirsi.top/3TmXtVf
$10 OFF! 🔥 code: DST10
🛒 Amazon: https://fnirsi.top/4mo1pgR

04/10/2026

When resistor spacing is unclear, don’t rely on the gap alone.

Start with the tolerance band, read the color code from both directions, and choose the valid code. If you’re still unsure, measure the resistor out of circuit with the FNIRSI TMP-610S.

On a PCB, lift one leg when parallel paths affect the reading.

👇 Curious how this works on your bench?
Check the details on the following
🌐 Office: https://fnirsi.top/4dwRLag
10% OFF! 🔥 code: TMP10

30/09/2026

What’s inside a 4-in-1 tablet oscilloscope?
The FNIRSI DPOS350P unboxing covers its accessories, 1 GSPS sampling, 350 MHz analog bandwidth, 16-bit mode, independent trigger control, and built-in waveform generator.
It also introduces raw waveform replay, spectrum analysis, 3D plots, waterfalls, and automatic measurements.

👇 Curious how this works on your bench?
Check the details on the following
🌐 Office: https://fnirsi.top/4iEZJl6
$40 OFF! 🔥 code: 350P40
🛒 Amazon: https://fnirsi.top/3KzWso0

Which feature would you like to see tested next?

29/09/2026

Choosing a multimeter is simpler when you begin with the task.
Need fast everyday checks? Auto range is a practical starting point. Need to hold a known range? Manual range gives you direct control. Need more than basic measurements? A multifunction setup may fit your workflow.
Most important: use the correct probe jack and current range before testing. What type do you use most?

👇 Curious how this works on your bench?
Check the details on the following
🌐 Office: https://fnirsi.top/4hqQTGx
10% OFF! 🔥 code: TMP10

Address

61-65 Chatham Road South, Flat/Rm S239, 2/F, The Capital
Shenzhen
999077

Telephone

+8619125396241

Website

, ,

Alerts

Be the first to know and let us send you an email when Fnirsi posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Fnirsi:

Shortcuts

Share