Abstract: A signal activated switch for meters equipped with automatic meter reading output capability which allows a single water or gas meter to be interrogated by two or more meter interrogation units or meter reading devices without interference. The art of the present invention senses an interrogation by a meter interrogation unit and switches the meter interrogation unit onto the meter circuit for a brief period in order to read the internally stored data of the meter via an industry standard automatic meter reading communication protocol. The signal activated switch may integrate a display which allows display of internally stored consumption data, rate-of-flow, or water meter serial number. The signal activated switch also defaults to a first or primary meter interrogation unit should power be interrupted to the signal activated switch.

Abstract: A supervisory control and data acquisition protocol converter having encoded meter register input ports which are able to interrogate, read, and retain data stored in viscous fluid or gas meter registers which communicate with the Automatic Meter Reading (AMR) protocols and convert that data upon request to an industrial monitoring and control system protocol such as MODBUS®, DF1, EtherNet/IP™, or ADAM 4000. The present art further provides serial RS-232C and RS-485, and Ethernet ports whereby said data may be transmitted and/or the apparatus may be setup according to user defined specifications. The present art apparatus also provides industrial standard pulse (0-5 volts) and current (4-20 milliamps) inputs. The present art further provides a user configurable display which may display any or only a portion of the aforesaid data along with other user desired data. The apparatus further serves a web page over the Ethernet port with the aforesaid data populating a table.