if it's good storage that temp controlled no problem, if it isn't then when it gets hotter in the day and colder in the night water will form on metal cases and parts and rust will damage anything, if your going to cover it, make sure it can breath, and put some of those crystals in it that absorb moisture and come in little bags
2.5kg Unscented Moisture Trap Refill Crystals £4 won't name make as don't want a slap just incase OC sells them![]()