There's two versions of the case, original arduino's and screens will fit the one without the modifiers but the knock off units require the openings to be larger to allow the case to close properly. I printed in PLA-CF and transparent TPU for the buttons. Just make sure the knockouts for the button retainers are clear before you push them on to the pins so they don't break. Use a piece of the foam that comes with the uno underneath and some double sided tape to hold the battery to the top cover. You'll have to use a modifier on the side of the case for the sensor connector wiring, or just use a soldering iron to open up a hole depending on the gauge of wiring. Placement depends where you want the pigtail to come out of.

For the wiring:

9V direct to the pins for the input on the uno.

Ampseal wiring

ground to ground

5V → 2200 ohm → A5 → signal wire

Parts list:
Arduino uno

LCD Keypad Shield 1602 LCD Expansion Shield

9V battery and connector

Miniature Toggle Switch SPST ON/OFF 2 Terminal 2 Position

Female amp connector

2200 Ω resistor

2x #4 x ½" screws

2x #4 x ⅝" screws

Various wiring, hot glue

INO and code information

https://github.com/m-elias/PortableBinReader