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Name: 2018 Good Sale Non-visual 2 Wire Wired Audio Door Phone with ID Card Function
Model: PST-ADO500
2 Wire Audio Door Phone;
◆Support Unlocking & intercom; 
◆Material: Aluminum alloy; 
◆12PCS call button default;
◆Connetion cable: RVV2 wire; 
◆Working temperature: –10°C to +50°C; 
◆Comparative Humidity: 5%--95%; 
◆Transmitting distance: 100M;
Power supply: DC12V; 
◆Support Electric lock-control function; 
Introduction
Specifications
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PST-ADO500 Specifications
Name 2 Wire Audio Door Phone Outdoor Station
Model PST-ADO500
Power DC12V(One system only need one power supply)
Maximum Transmitting distance 100 meters
Connetion calbe From outdoor station to every Decoder user 3 wire(RVV3)
Working temperature –10°C to +50°C
Comparative Humidity 5%--95% non-condensing
Call ways Call by digital room number
Material Aluminum alloy
packing size  
Gross Weight  
PST-ADO500 Features & Functions
Application Can be used in apartments,villas,hotels and offices etc
Basic Functions Can connect 500PCS 2 wire audio indoor phone
Call indoor phone and Intercom
Support Electric lock-control function 
Multi-kinds of rings for your options
Indoor phone must buy with PST-ADD04 Decoder together
Compatiable indoor phones: PST-ADI22, PST-ADI02 and PST-ADI03
ID card function is optional(and need extra charge)
PST-ADO500 Package List
Outdoor Station x1
Mounting Bracket  x1
Screws and Others x4
User Manual x1