Presence detector for in-wall flush mounting into 55x55 mm frame, with a detection area of 180º and up to 10 meters length of detection. Fitting with Tecla 55, Flat 55 family and Zennio ZS55 frames, switches and sockets. It includes several channels to be configured for lighting switching control according to luminosity threshold or according to presence detection only. It has two independent sensors whose sensitivity settings can be adjusted for each sensor individually. Master/slave configuration allows using several detectors for larger areas. Installation in standard mounting box with 55x55 frames of 1/2/3/4 module (white, anthracite or silver). Frame not included.