Vandal resistant audio entry kit based on the 4000 Series modular design incorporating two way speech, electronic call tone and lock release facility. The vandal resistant door station is available surface or flush mounting with up to 12 call buttons. Engraving of up to 2 characters per button is included. A coded keypad for up to 2 8 digit codes is also included. The finish is a 12 gauge stainless steel with gun metal grey surround. Three Led's give confirmation of call, busy and lock release.