Yesterday we had an opportunity to test them in the most glorious manner. Sox was blow drying her hair, and I think some dust dislodged from inside the dryer, hit the heating coil and burned. The downstairs smoke detector went off and started beeping. Then I head it talking “Fire …. fire”. The next thing that happened was the upstairs one went off as well. The two detectors are linked together. Cool!
Unfortunately for Yoshi he hates loud noises. Unfortunately for me the front door was open and he bolted. When I next saw him he was heading down the sidewalk away from the house, two houses down.