ST5S Professional LCR Meter/ESR Meter with Spare Test Leads and Pocket Case

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

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.

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.

While pricey, the investment has already paid off in trouble shooting a complex board that has numerous 0402 components. I'm surprised by the accuracy, although I wish it would go to 100 kHz to better isolate the component under test from the rest of the network. In a matter of minutes I found the bad component. When I removed it from the board I found that excess flux had prevented it from bonding to the pad, leaving the trace partially open. While other instruments at a lower price will work for larger components, this seems like a very good tool for the really small stuff.I have also found it good for sorting components that are in cut tape, but not clearly marked. I have a pile of resistor values where the printing on the tapes was illegible. I can use the Smart Tweezers to poke through the tap and contact the component to take a measurement without removing it from the carrier.

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 .

Great product. It takes some getting used to. The biggest are the arms on the tweezers. They are too long and are easy to flex up and down, so that your tweezer ends don't meet exactly at a point. If you are lifting passives (especially ones as small as 0402) from boards and want to measure their values, you need to be careful of this "defect". Cleaning up the board with some flux cleaner before starting helps make good contact. If you don't get good contact on, say, a 0402 inductor - then you have to wiggle it around a bit. That can cause the component to snap out of place since the arms on the tweezers flex so much, so your component "disappear" on you.I contacted the seller about the case. I'm not sure if it was brittle from cold weather or it was my fault in mishandling, but it broke within a couple months of having the tweezers. The sellers acted right away and sent me a brand new one. Great customer service.