For homeowners to maintain or enhances their garage door security systems, this sensors replacement This sensors set features easy installation, sturdy stainless steel materials, and includes both sending and receiving sensors with indicators for foolproof setups Upgrades your garage door systems with our Sensors Set, with mounting brackets and detailed instructions for Ensures the family and property with the 41A5034 Garage Door Sensors Replacement, upgrades for any Liftmasters or garage door opener post For use in residential garages, the Sensors ensures garage door reverses automatically if obstruction is detected, accidents, Manufacturer: Dezzhou