Recieved alarm in a "zip-lock" baggy. Inside the bag, the alarm had a piece of corrugated cardboard backing and piece of thin red plastic to cover the alarm from dust. The red cover was abraded/torn in two places and the battery compartment was hanging open. Therefore there was little to protect the device from damage. The baggy with the alarm was placed inside an oversized box with inadequate padding as well. They used two strips of AirPlus bagged air pods which were 75% deflated. Thus no real protection... plus the oversized box was crushed and torn open on one corner. There is no way I would install a sensitive instrument into my home, in hopes that it will save my house and life after receiving damage like this.Buy your product elsewhere....