Wireless alarms for multiple exterior windows and doors. Secure entry points at your business or home. Easy-to-install no expensive wiring required!

• Detects the opening of a protected window and sounds a 90 db alarm or a chime to alert you or scare off potential intruders
• Protects inconspicuously with micro 2.5 inch design
• Owner may access the secured door or window with deactivation key
• Use in the home to alert parents to children accessing a gun, medicine cabinet or exterior doors (including hard to  secure glass sliding doors)
• Provides security for retail display units, glass showcases and cash registers
• You may also select the "chime' setting to sound a pleasant tone when accessed
  

Specs: package contains 4 unit, dimensions are 2 and one-half inches by 1 and one-half inches by one-half inches. The deactivation key adds one-half inches to the height (3 inches with key inserted). Batteries included.