Stalwart Mini Security Alarms (8ct)

Keep your home protected the easy way with these miniature security alarms featuring a magnetic sensor that detects the opening of a protected window.
on/off switch allows you to open protected objects without the alarm sounding
easy wireless installation
great for windows, doors and cabinets
includes 2-sided tape for mounting
set of 8
Plastic. Each measures 1¾x2½x1"H. Requires three “LR44” button cell batteries, included.