Specifically designed for all of the detectors in the Discovery range which has a low insertion force base with stainless steel contacts for the detector terminals. · · · XPERT Addressing · · One way fit of detector · · Locking feature to prevent unauthorised detector removal · · Designed to enable detector to be fitted without the need for any force Contacts are made of stainless steel · · Each slot is supplied with an empty address card · · Contacts are made of stainless steel · · Each slot is supplied with an empty address card