Electric relays; Programmable electronic controls for thermostats; Electronic smart home management systems composed of electrical contacts, electrical power supplies, electronic circuits, electric relays, power cables, sensor cables, electrical transceivers, electrical transducers and timers for control of hydronic and electronic systems for heating, cooling, ventilating and frost protection and for hydronic and electronic systems for frost protection and heating of floors, driveways, outdoor walking, driving and parking areas and roof gutters
Electrical and Scientific Apparatus