monitoring alarm systems
The entry sensors are also redesigned, and are much
smaller about half the length they
were before, squarer, and modern looking. They're powered by inexpensive, user replaceable CR2032 coin cells that should last an average of five years, and the system will warn you when they need to be replaced. Installation requires no wiring or drilling; I simply pulled off the battery activation strips, peeled the backing on the 3M Command like strips, and adhered each component after naming and pairing it with the system more on that below. Components are easy to move around without damaging your walls, and you can take the system with you to your next home, which is a welcome feature. The keypad, also available in black or white and powered by four standard AA batteries, sees the biggest design improvement, with a 2. 5 inch LCD replacing a tiny monochrome screen.