Board Thread:General Discussion/@comment-27029853-20170129150901/@comment-27029853-20170612153041

The normal rules for cloaking and decloaking that you'll find on the rules reference card apply.

So yes, you can decloak. You are allowed to cloak as long as you have Cloaking Device (which you can lose if during the end phase, you roll a die, if it's a focus you discard Cloaking Device, either decloak or discard the cloak token, and can no longer cloak afterwards) so you can get multiple Cloaking uses out of it.