Master Lock 266D Window and Patio Door Lock with Alarm

Product Details

Shipping Weight: 12.8 ounces
Shipping: This item is also available for shipping to select countries outside the U.S.
Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
ASIN: B0027IS4QU
Item model number: 266D

Item Description

From the Manufacturer
Master Lock window and patio door lock and alarm is an adjustable locking security device with a pressure activated alarm. It locks your window or patio door closed to avoid undesirable entry. Any attempt to open the window or door activates the 110 Decibel alarm (Jet engines are 120 db) whilst the burglar is nonetheless outside of your property, deterring the intruder and straight away alerting any occupants of the try. With every single second being important in these conditions, occupants get extra precious time to take protective action, call the police and stay away from a private confrontation with an intruder. As either a stand alone security device or in addition to your current property security process the window and patio door lock and alarm increases your home security and your peace of thoughts!
Poor guys know they're getting negative and do every little thing to conceal their behavior. If a poor guy desires to break into your home or home business, this Master Lock window and patio lock will reveal their negative behavior in an unmistakable way. This adjustable locking security device functions a pressure-activated, 110dB alarm while the intruder is nevertheless outside of your residence, quickly alerting any occupants of the attempt. It automatically adjusts from 22-36in., so it will fit most windows or sliding patio doors. It also delivers an clear visual deterrent, considering that the word alarm is printed in bold block letters on the device. As either a stand-alone security device or in addition to your existing household security system, you will have higher peace of thoughts. Battery included.

Technical Details

Adjust from 22-Inch-36-Inch to fit most windows and sliding doors and locks to resist forced entry
Loud, pressure activated 110 db alarm notifies occupants and deters burglars
Visual deterant, alarm printed in bold bright lettering
Easy to use and battery included
Improves security on patio doors and windows

Customer Reviews

I bought this door / window bar when I could not find the Master Lock 265D (old style) door bar.
This thing works great and is easy to use. I have the 265D on one of my patio doors. That one you have to use a spring loaded button to adjust which takes a little time. The 266D you just twist / slide and lock into position. Very easy.
This one also has an alarm that gives you light security on the door or window where it is installed.
Buy one or two...

Product doesn't sound as loud as I expected but much better than having nothing. It is easy to setup (less than 5 minutes) and is a good deterrent. I sleep better at night knowing it is there. However, you'll need to test it every once in a while because there is no way to know if the battery is dead. Even if the battery is dead, it still works as a door stopper.