Summary

An enclosure for an AliExpress leak sensor.

https://www.aliexpress.com/item/1005004937935094.html?spm=a2g0o.order_list.order_list_main.171.5eba18029ufWlP

This sensor is the best i could find. The traces are gold plated and trace surface area is rather high.

No supports needed.

Use silicone sealant to glue sensor PCB to the enclosure.

A small hole is used to inject hot glue (or other type of adhesive) into the wire channel and secure the wire.