The model evoQ4 is a popular magnetic flow meter manufactured by Honeywell (formerly Elster-AMCO); and it is available in pipe diameters 1.5-12 inch. Like many AWWA-style flow meters, the evoQ4 is available with several remote signaling options, including: Encoded and pulse signaling modules for the evoQ4 are detailed in the following Honeywell documents: HERE (pulse Read More →