![Weinzierl, KNX IO 411 [5231]](http://defitechnique.com/cdn/shop/products/w5231_{width}x.png?v=1582645595)
KNX IO 411 [5231] : Compact binary input with 4 Inputs for dry contacts / galvanically isolated for controlling lights / blinds etc / 1 TE (18 mm)
KNX IO 411 [5231] : Compact binary input with 4 Inputs for dry contacts / galvanically isolated for controlling lights / blinds etc / 1 TE (18 mm)