The VENLAB VM-600A is a good device for the price.
You can buy it here: https://aliexpress.ru/item/1005004599....
Input protection is implemented using simple fuses and a single thermistor, which is not bad for a $14 device, but it requires caution and understanding of what you're doing.
For those who say you need to buy at least a UNI-T, I want to say that Unit only has 3-4 good devices; the rest aren't much different from what you saw today, but they're very expensive.
Plus, you need to remember the realities of life.
About the contest: I'll select a comment with your city and description of your work. I'll contact the author. We'll arrange delivery.
P.S.
The contest is closed. The results are here: • Итоги конкурса VENLAB +АНОНС!!!