Videx 1 Button 4000 Series Audio Kit (Surface) with Codelock

Features

• 1 button 4000 series audio intercom door station and surface back box.
• 4800M stainless steel codelock with 2 relays (1 code per relay, 3–6 digits long) and 2 exit button inputs for each relay.
• 13VAC power input (321 PSU).
• 1 button 3011 audiophone with 3 level call tone.