Battery monitor (and temp probe) for an RV/Campervan auxiliary battery. The monitor and the switch can be found on Amazon.
The button was originally a toggle switch that was then upgraded to a push button switch after designing/printing.
I used a single screw to hold the lid in place as I am not able to screw from the top where its located (at least I didn't think so but could with a short screw driver), a second screw would be more ideal.
This is from some of my first prints where I thought I had PLA but really had PTEG, so I added custom feet to keep it from lifting.
The author hasn't provided the model origin yet.