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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. Nicely sized, round
backlit rubber buttons replace the tiny oval ones on the old keypad. A proximity sensor is a nice touch, illuminating the keypad for nighttime use. The larger screen also makes the
system setup process much easier, since you just pair all the components using easy step through menus on the display. Each component has a small button you press to pair it with the system.
