Haha our Retriever must be about that weight . I may look at getting it fixed again but we have CCTV up now , outside and in . Not sure they are worth the hassle .We were in the same position when we moved (dog). Just got a couple of sensors changed to be pet friendly. They don’t trigger unless a mass of over 35kg or something like that is involved. Seems to work well as dog (retriever) doesn’t set it off but I have by mistake on a few occasions!