There is some silastic on the thing although it does not look like it has stuck to the base. It does seem to have stuck to the cover. A couple of the batteries have leaked. Not sure if that was electrolysis or a combination of electrolysis and water. Mind you there is no water at all inside. It was completely dry when I opened it.
There is a sachet of silica gel under the PCB. I bet its done its job and more.
The PCB seems fine It has a thin layer of conformal coat - Now that's good manufacturing.
Started with the cover.
We need to work out what will remove the rusty colouring.
Removed the O-Ring which is hard and brittle and obviously not suitable for reuse.
Soaked in warm soapy water
More to come
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