Special "alligator clips" for connecting to batteries
10-09-2020, 13:33
Since I occasionally test camera batteries, when I saw these special alligator clips for connecting to them on Taobao, I decided to buy a couple for myself. But as it turned out, it wasn't that simple.
MUSTOOL X2 Pocket Multimeter Clamp Meter
7-08-2020, 02:37
As it happened, I got my hands on a simple clamp meter, which is what I’ll be reviewing today. I’ll try to keep this brief while still covering the inspection and tests.
RPM-416 Electrical Parameter Recorder from Novatek-Electro
3-08-2020, 03:52
Today I'm reviewing a product that isn't exactly unusual, but is definitely quite rare. In general, based on my personal observations, the number of reviews of devices for industrial and specialized applications is close to zero, and with this review I want to help fill that gap a little. So today I have a rather interesting gadget on my desk with a complicated name: an Electrical Parameter Recorder.
ZKEtech EBC-X 0510 Eight-Channel Battery Tester
13-07-2020, 15:22
I think many of my readers remember that I often test batteries, and for quite a while I've also had my eye on a dedicated battery tester. Yes, friends, today we're talking about the EBC-X electronic load and tester, which I finally bought :)
Voltage indicator RN-11 by Novatek-Electro
29-06-2020, 03:08
Today, a very brief review of a fairly ordinary voltmeter, but one that can be mounted on a DIN rail—that's actually one of its main distinguishing features. As always, the review includes an inspection, tests, a teardown, and an explanation of why I needed it.
FNIRSI-1C15 Mini Oscilloscope
13-06-2020, 13:47
Back in March, I was asked to write a review of the 1C15 mini oscilloscope. I can't say I was particularly eager, but I was curious to tinker with it. There were two reasons: it's a popular model, and I've also been asked several times about a simple oscilloscope for basic work on power supplies. Well, I finally got one and did a few tests.
Electronic load and battery tester: ZKEtech EBC-A40L
10-04-2020, 13:45
About a year ago, in one of my reviews of ZKEtech electronic loads, I wrote that I wanted to pick up a couple more. Recently, I bought and received one of them—the model with the highest current rating in the company's lineup. A look around, a few tests, and of course, my conclusions.

10 5458
Finishing the LCR Meter + Switching to Battery Power

10 5458
21-02-2020, 20:38
The LCR meter board has been sitting around for probably two years now. Everything would be fine, but it’s not very convenient to use in its half-finished state, so I decided to finish the case and rework the power supply while I was at it.
Fnirsi FNC88 USB Tester
15-02-2020, 19:57
The FNC88 USB tester, which has been shown many times before, has finally made its way to me. It’s made by a company with a very strange name: Fnirsi. Inspection, description, tests, conclusions—as usual.
Affordable Sndway SW-T40 Laser Distance Meter
7-07-2019, 22:20
I’ve already reviewed a couple of laser distance meters, and now a friend wanted a simple model too. He ordered one for himself so he could try it out and, while he was at it, tell me about it and put together a short review.
Small, simple 60 V 10 A voltmeter/ammeter
23-05-2019, 15:20
I came across a small voltmeter/ammeter board on Taobao and decided to order one and give it a try. Turns out I made the right call—but more on that in the review.
TC66 (C), a USB tester with a USB Type-C connection and a built-in trigger for various protocols
8-05-2019, 03:40
Back in winter, news came out that RuiDeng was planning to release a new USB tester. I was particularly interested in this model, and now I have one in hand to test. This review covers the tests, as well as why this particular model caught my interest.
Universal battery holder with four-wire connection
14-04-2019, 00:26
Lately, I’ve been getting more and more different batteries to test, so I decided to pick up a couple of simpler holders to complement my powerful universal holder. Today I’m reviewing two of these simpler—and therefore less expensive—holders.
Ammeter-voltmeter with a VFD display and power measurement
13-04-2019, 10:50
Continuing the topic of devices with VFD displays, I want to tell you about a rather interesting product: a fairly accurate ammeter-voltmeter that could come in handy for a hobbyist.
ZH-YU ZB206+ Battery Capacity Tester and How It Measures Internal Resistance
6-04-2019, 12:10
Some time ago, while discussing another batch of “test subjects”—batteries—the topic of measuring internal resistance came up. Since the well-known YR1030 (and 1035) are relatively expensive, one commenter said there was a good, inexpensive little tester called the ZH-YU ZB206+. But a few caveats also came to light, so to set the record straight, I bought one of these testers to try out.
Good price on the MESTEK IR01C infrared thermometer
17-03-2019, 21:13
One of the blog's regular readers tipped me off that an infrared thermometer is available at a decent price on Banggood.
EBC-A20, another electronic load from ZKEtech
15-03-2019, 01:24
The second electronic load from ZKEtech, bought quite recently, and the third device in my collection of measuring instruments. Though in this case, calling it a measuring instrument is a bit of a stretch, and it doesn't quite fit the definition of an “electronic load” either, since it's also partly a battery tester. Anyway, today I'm reviewing the 20 A version.
Adapter for an electronic load for testing power supplies with a USB output
13-03-2019, 01:10
A very brief review in which I’ll show you a useful accessory that expands the functionality of the electronic load I reviewed recently.









