Wireless Security alarm KERUI

A burglar alert or robbery system is a device that declares this illegal when going through privacy with a voice notification. Although available in the market in different types of shields, they all have a common structure, meaning that most shields have an open and closed excitation line, which is the location of the open sensor and the closed sensor. They have a standard key or an alpha switch or a lock, or a remote control key to turn the device on and off. Alarm circuits also include a battery charging circuit to disconnect the device and have an siren circuit. Finally, the alarms sometimes have an entry and exit timer and a siren timer and may also be equipped with an automatic caller during stimulation.