American Access Systems AdvantageDKE Digital Key Pad The American Access System AdvantageDKE line of keyless entry offers post and surface mount configurations. All models are stand alone and have 100 fully programmable, four digit codes. AAS AdvantageDKE post mount models are housed in heavy metal, powder coated enclosures with stainless steel faceplates. A choice of metal or durable membrane keypad is available, both providing years of trouble free use. With a 100 code capacity, the 26-100, 26-100m or 26-100sg keypads are the perfect solution for many low cost installations.