Aeotec Door/Window sensor 7 has a much better reception than Fibaro, from my experience mounted on the garage door (inside) where I had to change Fibaro for the fact of 1/ signal and 2/ it died eventually.
Yes, IP20 but you can try have it in a heat shrink. See this Aqara that now it has been sitting for almost 3 years outside in the weather and it still works Making an Aqara Door/Window Sensor Ingress Protection
