I have just recently gotten an E-M1 housing and also the vacuum system. Finally got around to setting it up and am encountering a problem (I think).
I can create a vacuum and get the light to go green, but then it stays green (showing vacuum) even if I release pressure through the valve or open the housing. The housing is also easier to open than I would have thought. It would appear to me that the housing would give me no warning if vacuum was lost prior to or on a dive.
The moisture alarm works fine.
I will contact Reef tomorrow I suppose but thought I would see if anyone had any quick suggestions. Perhaps I am doing something wrong?