This audio entry kit has a 1 button surface and is based on the 4000 series modular design.

It incorporates two way speech, electronic call tone and lock release facility.

The kit includes: * 1 button with back lit name plate * A single button door station * Surface back box * Power supply * One audio phone **Technical specifications** * Recommended cable type - CW1308 (or equivalent) * Lock output - dry contact (C/NO pair) * Audiophone - 3011 * PSU model - 321 or 322 (13Vac) * Amplifier module - 4836 * 14mm mounted frame depth