The EKM Push Pro is the over-engineered version of the already dependable EKM Push hardware. Both Push versions function identically and, quite honestly, the engineering of the Pro version should be considered overkill for most installations. It has a hardened power supply, opto-isolated RS-485 communications, and other reinforced components. If the EKM Push is the industrial-grade solution, then the EKM Push Pro is the space-flight-grade solution. The Pro version has been designed for large installations and critical infrastructure where reliability is paramount.
Both version are located here: http://www.ekmmetering.com/ekm-metering-products/remote-meter-reading-solutions.html