Somfy 1841244 bell module Bus 2RT alu 103x120x33mm

2-call button module VSP-EM02 for the outdoor station of the VSYSTEMPRO video door intercom system, is used to expand the system for use in a 3- or 4-family house in conjunction with the camera modules for a 1- or 2-family house, power is supplied via the camera module, one module field is occupied, the camera modules can be expanded by a maximum of two call button modules