Initially I'd like to install a rate of rise heat detector above my Nema 14-50, however all of them require hard wiring, which is not available in my garage. Instead, I'd like to do the next best alternative of installing a smoke detector without the carbon monoxide component since wife is still stuck with an ICE. Anyone know of any battery operated smoke detector that can communicate with each other? I would install one over the Nema 14-50, and put the other one inside the house so I would know if the garage detector was triggered. Thanks.