Designing a Sensor Case

When thinking about how to track things, I explored rfids, barcodes, 3d scanners, bluetooth and other tracking options. The three main things I was looking for were (prioritized):
1. Power Efficiency (lasts longer than 9months)
2. Profile (low profile – less 2cm)
3. Price (cheaper the better)

I thought about building container lids that were connected. In the end, I decided to go for a simple solution that can be used with current lids – without requiring new containers. As such, I began sketching designs for a simple, low profile, sensor case that could be placed on top of any container. 3D designs were done using Sketchup.