Door Alarm

Double-duty Door Security Bar with Alarm not only blocks doors from opening, its alarm alerts you when someone tries to enter. Heavy-gauge steel bar extends from 29"–43" to brace any door from opening inward. As soon as the doorknob is touched, an alarm sounds — choose from a powerful warning siren…

…Easy-to-install, two-piece alarm features a main unit that attaches to any door with included hardware, and a small magnetic sensor that attaches to the door frame with peel-and-stick ease. Simply set your own security code and arm it when you leave. When you open the door upon return, a beep will…

…when doors or windows open — no wiring or tools required. Wireless alarm system includes 4 alarms; simply peel off adhesive backing and stick in place near entryways, windows, medicine or cleaning cabinets, bedroom doors and more. Choose from 90dB alarm or chime mode. Batteries included. Each alarm…

Door stop alarm protects you and your home. Security door stop has loud 125 dB alarm sounds at the slightest sign of entry. Movement sensor adds extra protection with adjustable sensitivity that activates if tampered; nonskid strips. On/off switch lets you take this safeguard on trips. Uses 2AA…