The AD600 is a presence detector for energy-saving lighting control. By monitoring sounds from
two different areas of frequency and analysing them presence is detected. The lighting is
switched on by the inaudible sounds with low frequencies which arise when a door opens. The
lighting is then kept switched on by higher sound frequencies from footsteps and speech. The
main function is automatic activation deactivation of the lighting in the event of presence
absence. Activation deactivation can take place in two separate channels A and B (lighting
groups).
