Functional features:
Call any resident extension to achieve two-way communication
● Receive calls from any extension and display the incoming phone number
The LCD screen is fully displayed in Chinese, making it easy to operate
● Can unlock the entrance host and fence machine
● Can receive alarm information from each resident's extension, display alarm type and extension number
● Can record the date, time, and other information of each alarm, and can query the records of each alarm at any time
Technical parameters:
● Call time limit -90 seconds
● Display - LCD Chinese display
● Working voltage - DC18V ± 10%
Environmental humidity -45% to 95%
● Environmental temperature -+55% to -10%
Frequency response -400-3400KHz ± 3dB
● Working current - ≤ 400mA
