Each new refill comes with its own energy source, a coin cell battery integrated into the refill. Optional SMARTLINK™ modules add capability for service alerts, compliance monitoring and other upgrades as technology evolves. Fully ADA compliant. Sanitary Sealed™ PET refill bottle with removable collar for easy recycling. Guaranteed reliability. At-A-Glance™ refills provide the easiest way to see when refills need to be changed. Lock or Not™ technology, can convert to a locking system. Guaranteed reliability.