This doesn't make a whole lot of sense to me. You would need a heck of a lot of sensors to cover all of the places where there could be potential problems which

This doesn't make a whole lot of sense to me. You would need a heck of a lot of sensors to cover all of the places where there could be potential problems which would cost hundreds of dollars. Additionally, these sensors need to be replaced roughly every 7 years while during this time maybe 1 spot in a home will be problematic and be sensed with this system if it's even working at all. If this sensor senses a problem, significant damage is most likely already done. Any cost savings of decreased home damages are outweighed by the cost of these sensors. Instead of buying a bunch of sensors, it would much much more sense to have a thorough home inspection conducted. Also, if there is a moisture problem, do these sensitive electronics even remain intact?