Keypad
The keypad is often used as a security tool to gain entry. For example, many people have the keypad to get into their garage door without the opener.
Keypads can also be used to gain access to rooms indoors and to access home automation features.
One of the main driver of a keypad is that the cost is less than an LCD touch screen. The touch screen is cooler, but the keypad can also do the job for less money.
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