FNIRSI LCR-P1 Transistor Tester, Mosfet Transistor Capacitor Tester, SMD Electronic Component Tester, Diode Triode Zener Diode Resistance Inductance Battery Test LCR Meter MOS PNP NPN ESR Meter

Nice tool works well, quality item nice finish and rechargeable, also flying in Leeds and little PCB thank you very much

As someone who's still learning everyday, this is a very useful little gadget. I wouldn't say I'm anything close to competent but I have managed to fix a couple of graphics cards and another board. This has been very useful as I've had to take components of other broken things. But not knowing what the capacitors and the resistors at the 0402 size are due to their very tiny size. This has been immensely useful. Now that said, it does have a lot of issues picking up 0402 resistors. You have to try multiple times with a few different things such as mosfets Dr. It can take a few tries to get the right reading. But even if all it did was tell me the capacitors that pays for itself so 5/5.

Great component tester. Very useful on lots of repairs. For the price it’s brilliant. If your doing repairs to component level this is for you.

This is a premium tester let down by the fragile ZIF socket which suffered a snapped lever after a couple of uses, fortunately I had spare ZIF sockets on hand to solder a new one in its place. A friend of mine had a similar issue with this so bear this in mind if you want one.

Great little device. Works a treat

Excellent product and very handy to have.

ESR measured on a number of capacitors was way off compared with an ST-5S and LCR-ST1. After updating to the latest firmware version V1.0.9, the unit locked up and the buttons non-functional. This is a known issue. The unit had to be opened up and the battery disconnected and reconnected. The firmware did update. Returned the tester.

Perfect and compact. Testing is fine. Saved guessing faults. Build quality is excellent, it’s halved my fault finding time.

Excellent product for SMPS, Chargers, Adapter repair on Components level to identify the Tranistor NPN PNP, True Capistance with ESR , Resistance, Inductor, Trac etc My Hi-end 4K HDR Player SMPS with multi voltage was giving Trouble while playing Disc and Layer changing BDXL. I tested Reference Resistance and Tank capistor and ref. Capistor was Having half value. I tested with this device and got New Parts first tested with this Device. I was amazed that less value on parts then description. So I got ref value parts and now NO freezing of Disc while laser change to 3rd Layer in BDXL movie Discs 4k HDR+

Buen equipo de medición LCR. Con opción de medir SMD. Excelente opción.

Reçu défectueux, le vendeur est malheureusement situé dans le UK, et le renvoi est bien trop cher et compliqué (formalités et frais possible en douane) Attention au fournisseur donc ! Ce produit est un des rares à tester certains composants de surface... Le mien ne le pourra malheureusement jamais.

Update to original Review ~~~~~~~~~~~~~~~~~~~~ I updated my review to 5 stars for the simple reason the support folk responded swiftly (within 36 hours) to my issue of a broken black lead and have shipped me a new set of leads to rectify the situation even though I clarified I only needed a replacement black lead. That's the kind of after sale service we all yearn for, a seller/manufacturer that cares about its customers. They say it may take 10 days for the leads to get here but they've given me a shipping tracking number and I'm perfectly ok with waiting. Thanks guys for caring. The meter continues to provide impressive results on analyzing and calculating the values of components I've tried. I realize some reviewers have noted issues but again, in cases where I can determine the part number of transistors etc, I've not had any issues testing the ones I have confirming them against the manufacturers specs. For the price, even though this unit seems very light weight and perhaps feels a little flimsy due to its tiny size, I'm impressed and will continue to add my recommendation, more so now I've received excellent after sales service to rectify a lead problem. At some stage I hope to find a small hard shell case I can keep it in but for now, I've retained the box it came in as it affords protection for the ZIF lever which protrudes out the side. Not a big issue. Original Review ~~~~~~~~~~~~~ To be upfront, I've emailed the support folks regarding this. If they respond and deal with the issue I'll gladly change the review but for now... Received the unit today. Here's the initial review. The unit is much smaller than I had expected. It works great!!!... but it is tiny. I tested transistors, mosfets. caps (various types), resistors, even tested the IR detector. IR detector worked just fine. It appears to give different codes for different buttons so I have no reason to disagree with the results. Capacitors tested were all correct results. Only thing I noticed is that the cap rating was within 2-3% of the caps rating. Some were spot on. None the less, I would say all caps tested were correctly identified. MOSFETs tested were all correct results. After reading reviews I decided not to just plug them in but checked online for the pinouts and use the leads. This is where I encountered a problem... The supplied black lead arrived broken! More on this later. I temporarily rigged up a lead from some other test leads I had. It correctly identified the MOSFETs I tested. Transistors. Same as MOSFETs, they all tested with correctly identified results per spec sheets I found online Resistors all tested correctly with the correct ratings. The screen display, while small, is very legible. I had no issues reading results and the color screen is actually very nice and clearly labels the pins on the connector. Very nice!!!! I did remove the ZIF and install the surface mount just to see it fitted okay. Not sure I'll use that part but wanted to see it fitted. The ZIF attached to the circuit board feels a little a little fragile but as I said, I will use this almost exclusively so I currently see no reason to remove/replace it with any frequency. So I'm totally happy with this setup for my situation. I did charge the unit using a standard 5v 2aH USB-C charger and cable. Charged fully within 45 minutes. No issues there either. So I have to say, very impressed. Everything tested thus far was correctly identified per the ratings either on the component or on the spec sheets. The black test lead arrived "broken". The test leads are not a great quality but none the less, one is broken. I've emailed support to see if they are going to replace the lead. If not I will return and request a replacement of the order from Amazon. If they replace the lead, I'll gladly change the rating to 5 stars because functionally I was very impressed with the unit. Now a minor quirk... Do NOT throw away the box... unfortunately, the unit is tiny and looks/feels fragile. Also with the ZIF connector, the lever sticks out the side so actually it's best kept in the box to keep it safe. I have no problem with that but the box tore very easy while trying to open so I ended up using some clear packing tape to strengthen it and hold it together. Still, this is a minor quirk and has nothing to do with the units functionality. So depending on whether the support folks are going to replace the broken test lead or I have to return it to get one that isn't broken, time will tell. I'll give them a week or so to respond and if nothing heard, back it goes for replacement. Yes, I would replace it because functionally, this does everything I had hoped it would do. If you do buy one, check the leads and meter functionality soon as you get it. If you're expecting it to give 100% ratings, you might be a little disappointed but as everything I tested came in 2-3% with some being spot on, it would be sensible to also note that the variance could be the components tested themselves. The electrolytic caps were new and some were used, the MOSFETs, other caps, resistors etc were all used (taken off dead circuit boards). I was testing things to see that they they came within an acceptable range of the rating and in my case, they did.

I have been using this tester a lot in the last three weeks. I have tested transistors, MOSFETS, zener diodes, capacitors and inductors. The tester has provided measurements for all. Sometimes the E and C pins are displayed reversed, but overall I am very happy with the results. I have also tested known bad components and the tester identified them as bad. The size is very convenient and portable. Charges quickly. I have other FNIRSI test devices and all perform to spec.