The eSpring™ electronic monitoring system is another advanced feature that differentiates this system from other home use water filtration systems. The monitoring system features an LED display that shows the status of the system and the amount of life remaining in the cartridge. Audible and visual warning cues signal when it’s time to replace the cartridge.
Once a new cartridge is installed, the monitor resets automatically which means there are no buttons to push. It is so advanced, it automatically "reads" the life of any cartridge inserted, whether that cartridge is new or partially-used.