Electronics and technology blog    /    Reviews    /    Measurement    /    Page 5

For quite some time now, I’ve been using a homemade meter for measuring capacitor capacitance and ESR, built from a circuit designed by GO, a member of the ProRadio forum. I also use another, equally popular meter, the FCL from the cqham website. Today’s review is of a device that claims higher accuracy and, in practice, combines the two meters mentioned above. Warning: lots of photos, little text. This may be an issue for users on expensive data plans.

Not long ago, I reviewed a USB tester with a certain “feature.” The comments on both the review and the video sparked quite a heated discussion, and today I’ll try to explain what was going on. So, scandals, intrigue, investigations.

A short video showing why a USB tester should only be used for rough estimates, not precise measurements.

I often see people measuring the capacity of smartphone batteries, power banks, and the like with USB testers in forum comments and reviews. I once tried to explain why measuring them this way makes no sense, but today I’ll approach it from another angle and test the testers themselves.

I decided to make a video version of my review of this unusual multimeter-oscilloscope, since some things are easier to show than explain in writing.

Some time ago, I read a review of this multimeter, and recently I got exactly the same one. Since it was sent to me for testing, I had to write about it, so I’ll simply try to describe the device in my own words. Maybe someone will find something new here.

I happened to come across a small, but presumably interesting, item and thought it would be worth taking a closer look. It’s not a very common tool—I’d even call it niche—but it can be quite useful in some situations.

After buying an expensive multimeter, I thought I might move on from reviewing this kind of measuring instrument. But apparently, my fascination with tools got the better of me, and when I saw an instrument from the well-known Fluke brand, I decided to get it for a review.

The idea of finding that perfect multimeter has been on my mind for quite a while. I've already reviewed several multimeters, and I'll link to those reviews here. One of them will also feature in this review. But I wanted something good, accurate, and relatively inexpensive. In this review, I'll show you the multimeter I liked and compare it with its smaller sibling.

I've already published a comparison of two multimeters that differed greatly in both price and capabilities. Today I'm reviewing another pair, with much more similar specifications, but still noticeably different from each other.

Another small addition to my collection of measuring instruments. This time it’s a small tweezer-style multimeter. This type of multimeter is primarily intended for working with SMD components. If you’re interested in the testing and teardown, read on.

I often need to quickly check the temperature of electronic components while working. I used to use a homemade contact thermometer with a DS1821 sensor. It was fairly accurate, but the contact measurement method has its drawbacks, so I ordered a small non-contact thermometer. If you're interested, the description and photos are below.

Summer and hot weather arrived unexpectedly once again, and since I’m responsible for a small server room, I wanted a way to monitor the room temperature remotely.