It is an excellent timer to activate, in a digital way, the sound of the school bell. I have already installed one at school with my electronics students, we will soon be installing this at the other site of the school.
It just arrived today, tomorrow I will try to install it in my school. It should work. The timer programming appears simple and intuitive with the 4 buttons available, as well as the connection to the electrical system. The possibility of putting it in an existing electrical panel also appears easy too.
because of Covid19 it arrived 4 months later
Good product ... can charge several battery types ...display % of charge...nice.
गग