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