Magnetic Door & Window Alarm Sensors 8-Pack — 100dB Alert, Easy Install, No Wiring

Secure every entry point in your home with this 8-pack of magnetic contact alarms. When the door or window opens, a 100dB siren sounds instantly — no wiring, no hub, no monthly fees.

• Pack of 8 independent alarm units
• 100dB loud siren triggers on opening
• Self-adhesive install — no tools needed
• Includes ON/OFF/DELAY switch
• Works on doors, windows & cabinets