Smart TweezersST5S Professional LCR Meter/ESR Meter with Spare Test Leads and Pocket Case

I am very satisfied with the purchase, very useful and very precise

I'm using it primarily while working on prototypes of industrial automation control devices - the instrument works exactly as described, I had no any glitches or malfunctions yet. Great aid for repair, building or tweaking up boards with small SMD components (those seemingly gold plated tips it comes with are easily landing on 0402 footprint components and are of good quality overall - the "shorting" resistance is less then 40 mOhm) - saves alot of time in comparison to frustrating process to do that holding probes of conventional multimeter as chopsticks. Fast and accurate (compared with readouts of benchtop Fluke multimeter) readings, crisp graphic OLED display, plenty of measurement modes and presets (including, for the instance, caps ESR, diode voltage drop (useful for transistors as well) measurement, etc. The thing like these tweezers becomes exceptionally useful for finding right replacement components to scavenge from scrapped boards for resuscitation of device being repaired.The interface is convenient and reasonably intuitive for such small instrument - the brief look at supplied "menu tree" card and you got it (e.g., the "joystick control" has direct shortcuts to common measuring modes and parameters setup.

The ST5-S hand-held LRC meter has precision/accuracy which closely matches that of much more expensive lab-bench LRC instruments, with pretty much one exception, the measurement/sampling frequency option... very high-end instruments in this category will support the option for > 10KHz, often to 100KHz or 1000KHz, whereas the ST5-S goes up to only 10KHz,. However, unless one is measure very small value SMT capacitors and inductors, this is generally not an issue.The OLED display is very sharp & clear, (you may have to wear your glass to see some of the details), but it is quite readable, in virtually lighting conditions.It's smart auto-device detection capability is very handy, thus it is very easy to use and compact, the Li-Ion battery last for several hours before requiring re-charge... overall, it is most definitely worth the price.

Update: Advance Devices contacted me and helped me to restore the tweezer I had, there is an issue with the processor going into sleep mode on the version I had (I suggested they add more details to the manual or creating a troubleshooting guide.) They also shipped me a new version of the tweezers that do not have this problem and have some other improvements. I am back up and running, and using the new tweezers. Thanks to Advance Devices for the great service, have no reservations, if something goes wrong, Advance Devices will take care of you.Original review:I design high performance analog circuitry for a living and have worked designing electronics for 20 years now. I work on the highest performance circuitry in the world. I've recommended these tweezers to friends in the industry, and right now I am wondering if I steered others in the wrong direction.I loved these tweezers for the first 6 months, really makse testing surface mount components fast and easy. But when I went to use the tweezers recently, they would not turn on. I checked the cables and charger, tried a few different options, other device that uses the same charging port charge just fine. I get nothing on the display, just completely dead. More than a little disappointing given I have only had them 6 months.The company has no information on service, warranty or otherwise. I sent an e-mail, and got no response. Maybe they are small and on vacation? I am going to try and call, but thus far it seems the customer service is non-existent from the manufacturer, and appears that it is going to be a pain for me. Unless/until the company responds, I will be giving this product 1 star and I do not recommend that you spend close to $300 on this item when service is so questionable. Hopefully the company won't continue to be MIA and will stand behind the product they are selling. I will update my review with new information.

A high quality product but expensive .The ESR measurement works fine and it is very important when you are testing electrolityc capacitors in high frequency .

I have really enjoyed using this device. So simple and so many features. Even bluetooth to a computer for display and logging. Best one that I have ever tried. I purchased for my hobby of testing and fixing audio equipment. It's best for SMT parts but cal also work on discrete components as long as the terminals are not too far apart. One of my favorite electronics tools.