Commercial Overhead Door Surface Mount Switch Set - 4110/4482 SeriesThese products are all Made to Order Which means they are non cancelable and non refundable Description Commercial Overhead Door Surface Mount Switch Set 4110 4482 Series The 4110 4482 Series is essentially a vane switch for use on storage units with overhead doors and latch type locks. Intended to be mounted on a roll up type door channel, these switches will not allow the alarm system to arm unless the bolt or latch, which serves as a shunt between