If you have a 30 apartmenrts, use 1 Apartment door station, every rooms outside add a doorbell button, guest can press this doorbell button outdoor , indoor monitor will ring
www.aliexpress...
Негізгі бет VTH2621G P Doorbell function
If you have a 30 apartmenrts, use 1 Apartment door station, every rooms outside add a doorbell button, guest can press this doorbell button outdoor , indoor monitor will ring
www.aliexpress...
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