Brinker points to one monitor, where the mysterious man slides a folder under the Judge's door.

Brinker指向其中一台显示器，图像中这个神秘的男人将文件夹从法官的门底下滑入门内。

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The Main lift controller must steadily monitor the continuous pressure of the car push-buttons (open door and floor call push-buttons), performed by the Fireman controlling the installation.

电梯主控制箱必须能够稳定地检测轿厢按钮(开门按钮及楼层呼叫按钮)的持续压力，以便消防员能够控制整个电梯。

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Beyond merely guarding the entrances to your house, he shows how the software can keep a detailed log or send text message alerts every time any door in the house is opened, to monitor practically every activity in the house.

FORBES: ADT iPhone App Lets You Play Big Brother In Your Own Home

Athletic departments now monitor social networking Web sites, and cellphones are collected at the door of college parties to try to keep embarrassing or illegal moments off the Internet.

FORBES: College athletes: The downside of being campus celebrities