No support and poor quality.
I was gifted a soldering iron and it worked 2 times and is now dead. They have zero support. Typical Chinese junk, typical Chinese product support.
About Fnirsi
Data updated- Website
- fnirsi.com
- Category
- Electronics & Technology
- Location
- United States
- Status
- Unclaimed
- Last 12 months
- 34 reviews
- Replies to negative
- 0% (0/34)
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About this business
Discover innovative test equipment at FNIRSI, including digital oscilloscopes, multimeters, signal generators, soldering tools, and USB testers—ideal for pros and hobbyists alike.
Written by the business, not verified by us.Is Fnirsi legit?
Fnirsi (fnirsi.com) has a 1.6 out of 5 rating on OK.one, based on 41 user reviews collected here. It is listed under Electronics & Technology and its reputation is poor. 83% of reviews are 1 star, a relatively high share; The business has not yet replied to negative reviews; Reviews mostly discuss Product, Customer service, Quality. Last updated 2026-10-24.
What reviewers say
AI generatedMost reviewers were unhappy with their experience overall. People widely reported terrible customer service, stating that support agents completely ignored emails and failed to provide any assistance when technical issues arose. Buyers also faced severe shipping delays, lost parcels, and frequently received defective items without ever being able to successfully process a warranty claim or return. Some reviewers were happy with the actual hardware, noting that certain devices felt exceptionally well-made and provided great value for money. Other customers also enthusiastically praised the tools as excellent reliable options for simple projects when orders arrived safely within the expected delivery timeframe.
Auto-generated from all reviews of this business. For reference only.What people say
Avoid buying there.
Avoid buying there. Warranty is non-existing. They are sending you instructions how to solve it yourself for 5 weeks and not replying to the real request to exchange or repair the power supply I purchased. If you pay cheap, you will pay twice. Typical Chinese cheap company without any quality. AVOID BUYING THERE
⭐️⭐️⭐️⭐️⭐️ Excellent tools for DIY use
⭐️⭐️⭐️⭐️⭐️ Excellent tools for DIY use – but logistics need improvement I am overall extraordinarily happy with the Fnirsi tools I have bought. I cannot say for how long they will last though. I own several of their products, including a battery tester, soldering iron and a few other tools, and so far everything has worked very well. For the prices they charge, I think the value is excellent. I cannot judge how they would stand up to everyday professional use, but for a hobby/DIY user like me, they are amazing. Where Fnirsi definitely needs to improve is shipping and logistics. With my last purchase, I was informed that my order had been shipped when in reality it had not. The shipment was then cancelled, and there was quite a lot of confusion before a Fnirsi representative finally explained that there had been a fault in their system which incorrectly registered the order as shipped. To their credit, once the problem was identified, they sent the order again and I eventually received exactly what I had ordered. I can understand why some customers leave one-star reviews after experiencing shipping problems like this. But I think Fnirsi rectifies issues rather quickly. I have also seen negative reviews of another Fnirsi product that I had been considering buying, and those reviews have made me reconsider that particular purchase. However, I can only review my own experience. Every Fnirsi tool I have actually bought has been very good, the prices are excellent, and I am very happy with the products themselves. For me: Products: ⭐️⭐️⭐️⭐️⭐️ Value for money: ⭐️⭐️⭐️⭐️⭐️ Shipping/logistics: Needs significant improvement.
I purchased an oscilloscope tablet.
I purchased an oscilloscope tablet. After one year, the battery does not longer charge hence unusable. I wrote the company, never received any feedback.
Unfortunately Fnirsi is happy to…
Unfortunately Fnirsi is happy to disregard any warranty issues and I have purchased 3 different items from them. Most recently a Multimeter with a failed internal relay which was a known problem, they suggested that I change it myself even though the meter was purchased less than 12 months ago. Very disappointing and will not purchase another Fnirsi product due to this.
Service
The product itself feels high-quality at first, but when opening the lid, the tip of the soldering iron shaft literally fell right out (manufacturing defect, poorly crimped). Although I reported this with photos just 5 minutes after delivery, customer service immediately accused me of having used it. That was not the case, and even if it were, a soldering tip shouldn't just fall off, right? Anyway, it took 10 emails with a 1-2 day response time each just for a €15 tip! This feels like a tactic and is unacceptable. This was my last time buying from Fnirsi if this is how they treat customers.
From Loyal Fan to Ghosted Customer: FNIRSI’s Support is an absolute joke!
I used to love FNIRSI hardware (owning the DPSO350, multiple USB testers, radiation detectors, and the HS-03 iron). The hardware is decent, but their customer support is catastrophic. If your package gets lost, they will ghost you and keep your money. Ordered the SWM-20 on April 1st, 2026. It never arrived. On April 15th, FNIRSI even sent me an email confirming a "delivery exception" due to "unusual shipping conditions." Yet, they marked the order as "delivered" in PayPal using a fake carrier named "MANUAL". For over THREE MONTHS, I was trapped in a loop of automated AI text templates ("the store manager is handling it", "please be patient"). I gave them a final 96-hour ultimatum, escalated directly to their Executive Office management (Toby). Result? Just another useless bot reply saying "this issue will eventually be resolved." The grand finale: I finally escalated the case to PayPal. PayPal checked the invalid tracking data provided by FNIRSI and closed the case in my favor WITHIN SECONDS, issuing an immediate refund. Buyer beware: FNIRSI has zero respect for long-time customers and zero business ethics. If something goes wrong with logistics, you are completely on your own. Avoid buying directly!
I still haven't received my order
I still haven't received my order after a month.
Order was never sent - clearly a scam
Order was never sent, support messed me around for a month, clearly a scam. I had to do charge back via my bank.
Scam company
Parcel sent to Evri who have lost it customer service not interested gives out automated response we are looking into it now I’m £100 out of pocket got bank involved it’s been over two weeks now no refund Evri and this company don’t order from them scam
ODB2
ODB II app only works if you insert your phone number, e-Mail and allow access to the GPS location of your phone. That's spy ware ! I wastet the ODBII ...
Do not buy from here
Still not received parcel Evri has stolen it very expensive fnirsi will not reply so do not buy from this company I want a refund or replacement have contacted bank never again will I buy direct
FNIRSI DWS-200
FNIRSI DWS-200 I'm happy with the product but they toss around numbers like 200W or 60W or 120W interchangeably, I haven't checked the actual draw from the thing, but 2/3 of those claims has to be a lie. This inconsistency is suspicious
Do not order directly from FNIRSI
Warning about ordering directly from FNIRSI. I placed order #48116 on 11 February 2026 for a soldering station. As of 19 May 2026, nearly 100 days later, the order has still not shipped. Tracking only shows that a shipping label was created, with no actual carrier movement. Before receiving any response at all, I sent multiple emails to all listed FNIRSI support addresses and also attempted to contact them through their website chat. I received effectively no responses through chat or email for an extended period. The only replies I eventually received came after I mentioned escalating the matter through my bank and making the situation public. Over roughly the following 3 weeks, I received only two short replies stating that the issue was being “escalated to manager”, but there were no further updates, no shipment, no refund, and no meaningful communication afterward. At this point I have neither received the product nor a refund. Based on my experience, I would strongly caution people against ordering directly from FNIRSI unless they are prepared to risk non-delivery and extremely poor customer support. If you want their products, I would recommend purchasing through a platform with strong buyer protection instead.
Scam
Ordered two items. One arrived the other is still not sent. It’s now months. The carrier canceled the package now because fnirsi never sent it… customer support is not answering. I sent about 80 emails by now.
They won't fix a problem even within the warranty period.
In October 2025, I ordered a GC-03 FNIRSI device directly from the manufacturer. It took a while, but it got there. Now in April, after using it 5 times, it no longer measured radiation. I wrote to the FNIRSI service, they told me to measure the voltage of the tube, it should be between 300-400V. I measured it, took a picture of it for them, it was only 247V. Since then (3 weeks ago), they have not responded to any of the three letters I have written so far, even though I specifically asked for a repair or replacement within the warranty period. I think I will talk everyone out of FNIRSI due to the lack of support...
No Warranty and Customer Support Ignores You
Do not purchase directly from FNIRSI. They do not honor their return policy and their support center just ghosts you after they say they'll get back to you. They might make tempting products, but it's all disposable products where they will not respond. I ended up having to go through my credit card company to do chargebacks, huge hassle.
Unacceptable device, unaceptable tactics of customer service, no refund
1. The Fnirsi Oscilloscope 2D15P does not provide the promoted 1M memory function. The button to change the memory depth shows no effect. It has no influence on the sampling rate and also no zoom is offered. 2. The promoted bandwidth is not available for signals with a fundamental below several MHz. Means in many digital signals and in common switch mode power circuits you cannot examine the correct sloping or see undesired ringing of the edges. 3. The probes are low quality, in my case they are introducing a 5% error in signal size. While point 3 is just a minor issue - points 1 & 2 are limiting the usability of this scope to the same level like any cheapest 20MHz scope could serve. Customer service is either not answering or just going for annoying delay tactics for three weeks now. They did not send me an adress information for sending it back, no offer for refund. They just let you wait until you give up. My gerneral advice: Do not buy Fnirsi.
Non-Existent Customer Service - AVOID!
I have been trying to return a 2D15P Oscilloscope since 13th February (within both their 14 and 30 day return windows). I found the 2D15P to be a complete mess of small touch screen combined with some physical controls. I told them that I wanted to buy their larger Tablet based Scope instead. Despite numerous emails and Messenger messages, I have received ONE email response asking for a picture of the item, despite it being packed for return since the 13th, and trying to tell me it would have to be returned to China despite having been shipped from the EU. No address or mailing label, and obviously trying to avoid a return despite me wanting to buy a more expensive alternative. Send me a return shipping label to your EU depot as every reputable company would do. Looks like I an stuck with a device that I consider unusable,so 120 GBP down the drain. A company is only as good as its customer service and this company simply doesn't have any! Look at other reviews here and you will see the same thing over and over again. I will never buy from FNIRSI again and suggest you don't take the risk either!
Terrible experience on fnirsi dot com/es. I regret this mistake.
Right now, I don't know if the DPOS350P is just vaporware or if fnirsi.com is a scam unrelated to the device's creator or manufacturer. It's impossible to get a response from "support," just as it's impossible to receive the oscilloscope and Geiger counter I paid for a week ago: the tracking says "Ready for pickup," but the package never arrived at the indicated pickup point, and I was only told it had been sent to another location (in a city several kilometers from my house). After going to that address, I only found an old shoe store going out of business, which, of course, was closed. The courier's support page just shows a blank page, their hotline has no humans, only a mindless bot, and fnirsi's support chat is dead, with no response to my questions from a week ago. I should have followed all the advice that said "buy a RIGOL."
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