Well this one is interesting and frustrating. Some of you may already know that Schlage hs discontinued some of their access control lines. The legacy series and a few others. These products were slowly dwindled down due to older architecture and inability of the product to be updated well. The new Schlage lines are the CO and the AD. For anyone with the older product lines you will have an increasingly difficult time with parts and support. We at ESI can certainly help you maintain your systems for as long as possible and can even replace them when the time is needed. We work well with Schlage and their technical support as they continue to move forward with new products. Schlage does still offer limited support for these older products and we at ESI can utilize that to help you repair, maintain, or replace.