Water and Wastewater Terms Beginning A
A B C D E F G H I J K L M N O P Q R S T U V W Y Z
alarm contact
A switch that operates when some preset low, high, or abnormal condition exists.
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A B C D E F G H I J K L M N O P Q R S T U V W Y Z
A switch that operates when some preset low, high, or abnormal condition exists.