Simple two part case for the cheap lipo battery tester and alarm found on various websites. Printed in two seperate parts and glued together with hot or CA glue. Posative and negative symbols on the front of the case correspond to the sticker on the back of the tester so you know which way to connect your batteries. Small slot on the back cap to reach the button to change the mode.

The back cap will be a very tight fit but should push in place with a bit of pressure.