Are my electronics safe in the basement?

My basement was the same way when we bought our house. We got it dry eventually . We cleaned the cement walls and floor. Then we put dry lock on the walls and floor of the basement. Still need the dehumidifier, but not to bad on moisture anymore. Plus I have all walls studed and sheatrocked. Make sure no leaks when it rains. I have all mine fixed now. You should be good. That Dry Lock is thick stuff. It works awsome.