What is the Window & Patio Door LOCK & ALARM?
The Window & Patio Door LOCK & ALARM is an adjustable locking security device with a pressure activated alarm. It locks your window or patio door closed to prevent unwanted entry. Any attempt to open the window or door activates the 110 decibel alarm (Jet engines are 120 dB) while the burglar is still outside of your home, deterring the intruder and immediately alerting any occupants of the attempt. With every second being critical in these situations, occupants get more precious time to take protective action, call the police, and avoid a personal confrontation with an intruder.
As either a stand alone security device or in addition to your existing home security system – the Window & Patio Door LOCK & ALARM increases your home security and your peace of mind!
How does it work?
Simply twist the tube to unlock, adjust the size of the security bar to fit into your sliding window or patio door frame, then twist to lock again. Now place it into the tract of your sliding window. If an attempt is made to open the window or patio door the pressure activated alarm will trigger and the bar will provide a physical barrier to opening the window or door.
The Universal Clip & Block Advantage – View Details
Installed into the window frame this accessory enables the Window & Patio Door LOCK & ALARM to work in other applications such as vertical sliding, single hung or double hung windows, large custom sliding windows, and "outside" sliding patio doors. It provides options to mount at the bottom, middle or top of a window or patio door frame for ease of use or for child security. Additionally, it makes a convenient holder while the window or patio door is open.
No. 266D Window & Patio Door LOCK & ALARM – View Details
– Fits window and patio door openings of 22" – 36"

