Keri Systems Inc. announces the release of ‘Neutron,” an economical, single-door, mini controller created for smaller systems. Neutron can handle both “in” and “out” readers, using Keri’s exit readers in parallel with our standard NXT readers. Eight Neutron controllers can be connected together via time-tested RS-485 communications. Neutron is designed to exclusively run on Keri’s simplified graphical interface, Visual Doors, yet carries nearly the same powerful features as our NXT controllers.