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