Support fire alarm linkage control ( Emergency evacuation alarm function).
Special OSD menu operating system makes communication smooth.
Capacitive touch key is for good operating experience,and long lifespan.
Support alarm clock, do not disturb scheduled, calling lift at home etc.
Support monitoring, intercom, unlocking, calling management center, emergency alarm, eight protection area alarm etc.
Various chord ringtone optional.
Local room number setup, support many door phones for one household, can connect doorbell and door entry.
Double soldering SMT process, high integration;with multiple-layer PCB design, strong anti-interference.
Lightning protection ( surge protection )to improve lightning protection ability.
|Audio SNR(Signal to noise ratio)||≥ 50dB|
|Call time limit||60 seconds|
|Operating temperature||-10ºC ~ +50ºC|