FnirsiDiscover innovative test equipment at FNIRSI, including digital oscilloscopes, multimeters, signal generators, soldering tools, and USB testers—ideal for pros and hobbyists alike.
Fnirsi (fnirsi.com) has 54 customer reviews on Five Star Index, with an average rating of 1.7 out of 5.
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Appliances & Electronics · Twinsburg, Ohio
Excellent
Appliances & Electronics · MILLERSBURG, Ohio
Excellent
Appliances & Electronics · Brentwood, New York
Excellent
Appliances & Electronics · Fort Lauderdale, Florida
Excellent
Showing 43 reviews with 1 star · Clear filters
Alessandro C.
Terrible brand. I received a defective product and got absolutely no assistance. No reply to emails, no reply in chat — nothing. Complete lack of customer support. Total waste of money. Afterward, I discovered that other customers experienced the same issue. Stay away from this brand.
Alessandro F.
Non acquistate assolutamente da questo produttore cinese. Il diritto di recesso, pur pubblicizzato, non viene applicato anche in caso di cambio e non di restituzione del denaro. è ormai oltre un mese che cerco di contattarli sui canali preposti, senza nessuna risposta. Assolutamente da evitare
Marco F.
Il mio alimentatore FNIRSI ha smesso di funzionare. Invece di onorare la garanzia come un'azienda seria, l'assistenza (Leo) mi ha mandato istruzioni per smontare il dispositivo, saldare un diodo Schottky e cambiare un fusibile da solo. Ho risposto chiaramente che sono un cliente, non un tecnico elettronico, e non ho le competenze per riparare schede madri. Invece di organizzare il reso e la sostituzione, stanno prendendo tempo con risposte evasive. Sto perdendo soldi ogni giorno perché non posso lavorare senza questa attrezzatura. Se comprate da FNIRSI, sappiatelo: la garanzia praticamente non esiste e il servizio clienti è terribile. Avevo intenzione di comprare altri strumenti da loro, ma dopo questa esperienza non comprerò mai più nulla di questo marchio.
ScouseFix
Recieved a new DPOS350P, its turns on etc but will not charge, tested with and without the supplied power supply. Reported on FB gorup and to 2 different email given, support and info. Had no reply from eitehr and the FB group just repeats "please email one of these adress's" Bewars as customer support is NONE EXISTANT
David H.
Beware if you have to contact customer service, they don’t appear to ever reply. I’ve attempted three contacts and I can’t resolve the issue my product a clamp, multimeter shipped, defective and broken. I have been unable to resolve the issue as now
Waldi
Fnirsi sent demaged device. Geiger-Miller tube was broken. They wanted a description and pictures of that demage. I sent both. Since then CS did not respond to any email request. There is no interest to help their customers. Poor behaviour.
customer
Ordered directly from FNIRSI website on 31 Dec 2025. Order confirmed, payment taken, but after 9+ days there is no dispatch, no tracking, and no response to email or website chat. Currently unresolved.
Ian B.
Ordered two items from them in November. Beginning of December got an email with tracking which was handed over to Evri on 8th December. Looks like Evri have lost the parcel but despite attempting to contact this company on four occasions since have received nothing from their support except once an auto response about someone's working pattern changing. Would not recommend anyone to buy from them