DOBERMAN SECURITY Door & Window Alarm &ndash; Unique Ultra-Slim Design Fits Sliding Windows &ndash; Loud 100dB Alarm OR Chime &ndash; Features Long Battery Life + Dual Trigger Technology &ndash; Perfect for Home, Office, Garage, or Any Rooms &ndash; Model SE-0101 DETECTS VIBRATION, GLASS BREAKAGE, AND DOOR ENTRY/EXIT  A simple, effective, affordable way to deter theft UNIQUE ULTRA-SLIM DESIGN  Perfect for sliding glass doors and windows; fits on virtually all windows and doors to protect your home, apartment, dorm, or office DUAL TRIGGER TECHNOLOGY + OPTIMAL SENSITIVITY  Magnetic & vibration sensors double your level of home security; sensitivity settings are adjusted perfectly to prevent false alarms due to minor vibrations. EASY INSTALLATION  Simply peel and stick, no tools needed. Warning sticker on backside deters theft;INCLUDES 3 BUTTON CELL BATTERIES (LR44) POWERFUL 100 dB ALARM  The loud 100 dB alarm will alert your neighbors of intrude Superior adhesive backing for optimum sticking power