CTSR is a sensor perimeter overseen by radio with innovative features: the only four with active protection of doors and windows. Indeed, the sensor transmits the opening and closing of the contact of the magnetic board and the outer row, the attempted burglary (with adjustable shock sensor) and openness (with counting of pulses) of an external roller shutters. A single sensor CTSR thus enables the production of multiple protection of the individual window, with separate radio reports for the 4 surveys. In conjunction with Central CE100-8, this allows to obtain parzializzazioni differentiated records of the 4 with a single sensor. The transmission of contact closure of 2 allows the use of the function on the central door open set. The sensor also sends alerts antiapertura tamper, low battery and supervision. Available in white or brown