I use the leak sentinel V3 in a split version since April 2014. Electronic installed inside the housing & vacccum valve and housing adapter separate ( see attached pictures). Processing my order and enquiries were managed very professional by Miso. I installed the system myself. From my point of view easy if you have some technical background. I tested the system in may 2014 for approx. 60 dives in Indonesia. System worked flawless without any technical problems. Battery live approx. 150 hours (first replace after 15 days with 10-12h in use). There are only two small issues from my side:
1. Contact corrosion due to stainless steel adapter. During Operation salt crystal built up on the passage between the stainless adapter and the Aluminium vaccum valve The knurl on the aluminium valve is slightly affected. I discussed the corrosion problem prior to purchase with Miso and he might consider to change the adapter material to aluminium in future.
2. Led is very small and nearly invisible in bright sunlight, even the first couple of meter underwater. I didn`t had that on my old Hugyscheck as they use bigger LED