Carlon RC3190D Battery Door Chime, 150' Range Clearance Protects threads from corrosion

Protects threads from corrosion

Handle & sponge callus preventer included

Standard steel material

Contains no petroleum oil

7/16" shackle and 5/32" shackle diameter

Carlon RC3190D Battery Door Chime, 150' Range Clearance Protects threads from corrosion"THOMAS & BETTS" BATTERY DOOR CHIME Battery Door Chime. 200' Range. Extended Battery Life. Different sounds for front, back and other doors. 2 1 4" Speaker Provides Excellent Sound Quality. 8 Different Sound Options. 32 selectable codes block interference from outside signals. LED Low Battery Indicator ,Compact. Belt clip on receiver allows use as a portable pager. Battery Powered. Compact receiver fits on counters, bookshelves or other out of the way