Small and Unobtrusive The shock sensors are the perfect solution for those projects where aesthetics and being discreet are important. Ideal for all types of residential or commercial installations, the shock sensors are able to fit all types of window/door frames or any other surface that requires protection. Unique bi-colored LED to indicate minor or major attacks Anti-tamper protection Moisture-resistant electronics module Sensitivity adjustment High immunity to low-frequency false alarms and radio interference Compatible with all makes of control panels SS -102 is able to monitor for minor vibrations (and count them to a preset limit) and for major attacks at the same time