Mailbox Z-Wave Sensor Housing

This is a housing I designed for a standard open/close Z-Wave sensor that is compatible with most home automation platforms. The particular model this fits is the GoControl Z-Wave Door/Window Sensor - WADWAZ-1. It should snap into place nicely. The lid goes on with ~3mm shaft screws not longer than 10mm in length. I affixed to the bottom of the mailbox (outside) using 3M VHB tape. My mailbox is metal and I had the sensor inside but the close signal would sometimes get lost since RF and metal do