The DKS 1500 Series family of Keypads provides access control for virtually any application where digital code entry is desired, and they are available for stand-alone applications or for connection to an Access Controller. The 1504 model adds an Intercom Substation to the 1506 Series, allowing voice communication via connection to a master Intercom Station. The 1515 Keypad is ideal for controlling doors or gates. The simple to install and use DKS Manager and User Apps (Android Phones Only) make this Keypad a sure bet for either stand-alone use or as a telephone entry controlled access keypad.