Door and window alarms come in several types. There are the self-battery powered units, which are not connected to a home alarm system. Others are part of that same monitored home alarm system and are connected together through alternating current. These are wired this way to receive electrical power and to transmit information to a centralized home alert panel and to a security agency monitoring station located some miles distant.
A unique window security alarm of the self-battery powered type is the Window Cop. This is a removable screen made of a steel frame and mesh. It fits any double hung window between 21 to 32 inches wide. The Window Cop is 10.25 inches high. Installation is simple. You open the window approximately 12 inches in height, place the Window Cop in the frame, close the window securely on top of the Window Cop and activate the window alarm by pushing the button on the side. A red LED indicator will inform you that it is armed. It will alert by a sharp alarm should anyone attempt to enter or exit through the window.
There are other door and window alarms, which are contact alarms. These are used where exit through certain doors and windows are restricted but must remain available in case of emergency. These have breaker bars, which release the door or window for emergency escape and emit an alarm and flashing light. These are used primarily on windows and doors, which exit to fire escapes. Another model, which functions for the hearing impaired, is the flashing door or window alarm. This is a contact variety and causes a nearby lamp to flash whenever the door or window is opened.
An alarm monitor is plugged into the electrical outlet near an available lamp. The lamp is plugged into the monitor. A glue-on contact can be placed on any window, door or cabinet. Whenever this contact is broken, the lamp flashes alerting the house occupant. Additional alarms such as the pressure alert doorstop alarm provide a 120-db alarm when entry is attempted through any door. The alarm is deactivated whenever you release door pressure off the doorstop. General Electric sells a contact window alarm that also emits a 120-db alarm. They include 5 warning alarm stickers to help in home security.
There are many window alarms that are used for pool security. Where there are fences surrounding pools many infrared movement sensors are located facing toward and away from the pool. These allow an alarm upon approach to the pool or if someone enters the perimeter of the pool fence. Battery powered gate alarms prevent authorized entry and will sound loudly when the contact circuit is broken when opened. There are battery-powered above ground wave detectors. These send an alarm whenever a body or object enters the pool. Their low cost will allow you to surround your pool with these anti-intrusion devices. Other wave detector systems can be placed beneath the water. These can detect unwanted entry into your pool without false alarms. These systems are more reliable and economical. The manufacturer of these also makes anti-entry devices to storage sheds, service buildings and home doors. These are based on the contact circuit principle and will alarm when opened. All of these systems are battery operated and provide an extremely economical solution to back-yard security.
The Window Cop is a unique window security alarm of the self-battery powered type