BTicino 4234 5 In \/ Out Expansion Module

The expansion modules allow you to expand the BTicino security system up to 128 zones (depending on the type of control unit installed), allowing you to meet all system requirements in the residential field The reduced dimensions of the modules allow their installation in junction boxes so that they can be placed near the sensors or contacts connected to them or using the special plastic container 4237 (not supplied), as well as having greater protection of the board electronic, installation on DIN rail is possible. The range includes 3 different expansion module