3.6 Volt Lithium Battery (for older receivers)

Ansonia, Avon, Beacon Falls, Berlin, Bethany, Bloomfield, Branford, Bristol, Broad Brook, Burlington, Canton, Canton Center, Cheshire, Cobalt, Colchester, Collinsville, Cromwell, Derby, Durham, East Berlin, East Granby, East Hampton, East Hartford, East Hartland, East Haven, East Windsor, Enfield, Farmington, Glastonbury, Granby, Guilford, Hamden, Hartford, Manchester, Marion, Marlborough, Meriden, Middle, Haddam, Middlebury, Middlefield, Middletown, Milford, Milldale, Naugatuck, New Britain, New Haven, Newington, North Branford, North Granby, North Haven, Northford, Orange, Oxford, Plainville, Plantsville, Portland, Prospect, Riverton, Rockfall, Rocky Hill, Seymour, Shelton, Simsbury, South Glastonbury, South Windsor, Southbury, Southington, Suffield, Tariffville, Unionville, Vernon, Rockville, Wallingford, Waterbury, Weatogue, West Granby, West Hartford, West Hartland, West Haven, West Simsbury, West Suffield, Wethersfield, Windsor, Windsor Locks, Wolcott and Woodbridge