6
4 Structure
4.1
The device consists of a base, keyboard with cover, LCD, circuit board with radio
elements, and battery compartment with removable cover. The keyboard cover can be
removed when the battery compartment cover is removed.
4.2
Tampering of the battery compartment is controlled by the tamper switch.
4.3
Mounted on the other side of the circuit board are the built-in buzzer and
embedded radio module.
4.4
Detaching of the device from the installation surface is controlled by the detach
switch.
Base
