Clock for Tournaments to Buy

@WaisKamal I live in a poor country with 125$ as a minimal monthly salary. We have DGT chess clock even in the most of middle sized towns with population 10 000 and more. And where we don't have them we have old mechanical clocks. Ask your compatriots (many of them are medical students here) to send you a chess clock if it is so rare in your country. Good luck.

I did not say the clocks are rare in my country, but not many people buy them. And if you think $125 is too small as a "minimum" salary, in my country that's the usual salary for a 2-year experienced doctor.

The original first post was about this question: ... what would be a good clock for tournaments?
It depends on the type of chess tournament.
Is the tournament for masters or is it for children?

Maybe even an Android chess clock on a cell phone is all you might want or need.

Have you tried to type these words "most popular chess clocks" on a search engine.

Awesome! Thank you everyone for your input. This is very helpful. I eventually want to take the students to a tournament to play against other middle schools or high schools. I just missed the tournament at the beginning of September in San Diego.

I bought a DGT 2010 and it arrived the next day. So far it has worked out very nicely. I might get another one or a different one.