Some alarm systems are tied to video surveillance systems so that current video of the intrusion area can be instantly displayed on a remote monitor, not to mention recorded. Some alarm systems use real-time audio and video monitoring technology to verify the legitimacy of an alarm.
Pipe(noun) any long tube or hollow body of wood, metal, earthenware, or the like: especially, one used as a conductor of water, steam, gas, etc. Pipe(noun) a small bowl with a hollow steam, -- used in smoking tobacco, and, sometimes, other substances.
The Actual outside diameter (OD) of a pipe is larger than its name: Nominal (nominal means âin name onlyâ from Middle English nominalle meaning âof nouns). Use the table below to cross reference the Actual OD (outside diameter) of the pipe to the Nominal Pipe Size.