Measurement isn’t always limited to cold water applications, and neither is Master Meter’s portfolio of submetering solutions. With our Hot Water Multi-jet (HWMJ) meter property owners can now accurately record and bill for hot water usage up to 140F. The HWMJ meets and/or exceeds the performance requirements of AWWA Standard C-708.Product value prop quote: Our Patented Flexible Axis Meter and Interoperable Connectivity solutions set the standard in water submetering.