Profile: Performance Meters, Inc. specializes in offering water meters. The Nitro II water meters utilize a magnetically driven, positive displacement, oscillating piston design. It is designed to measure clean potable water where flow is in one direction only in residential, commercial and industrial settings. California hydrant meters are designed to measure a wide variety of cold potable water flows from fire hydrants where flows are in one direction. These meters are light weight portable units designed for temporary installations. Bronze turbine meters are designed for applications where flows are usually moderate to high and occasionally low. They are to be used in measurement of potable cold water in commercial and industrial services where flows are in one direction.