ADA systems is a wholesale supplier and distributor of Security, safety, & Automation products (CCTV, Home security systems, Video Door phones, Attendance & access control systems, automatic gate opening systems & barriers,etc..). ADA's strategy has been to provide quality products at competitive pricing to the dealers.
Wireless door phone systems up to 1000 lines: You can communicate between door and house, but no between house. Houses up to 1000. Also open the door / gate form house if equipped, complete secrecy no over hearing.
Ideal for: Multi-storey building, apartments, villas, housing colony etc. Product features:
Full duplex communication. No... "push and talk"
Long range (up to 2km in same phase only on rural area)
House phone up to 1000 numbers.
Cordless/wireless operation
Easy installation Works on 90~240V AC power line (in same electric transformer)
Frequency modulated (FM) technology
Different channel and different security code
High quality electronics circuit (long lasting)
Loud and pleasant calling bell
Original ring back tone (no duplicate ring back tone)
Rx tx visual indication
Simple operation+ More
