Designed for easy and user-friendly operation. With CPU to control code hopping versions and 4 buttons without false alarm. Low standby current on sleep mode to save power. With panic, home, away and disarm function button. LED indicates signal transmission and battery condition. With software to turn on/off power function. A low battery detector function can report to the console. Power source: 3V DC CR2032 battery for 2 years battery lifespan.