Audio Video Doorbell Voice Only Intercom System With Talking And Unlocking Handset

Aluminum alloy panel.
System suitable for the high and multi-apartment buildings.
Stainless steel buttons with back light.
MCU intelligent controlling and short-circuit automatically self-inspection reduces the cost of maintenance.
Circuit is double-sided patch and moisture proof with high reliability.
Any outdoor unit can be expanded with access control and compatible with the audio phones.
Unlock by password from outdoor station or indoor phone unlock button ID card reader is for option

It can revise all the parameters like ring type and unlock time by keyboard adjustment.
Support All kinds of electronic lock,magnetic lock etc for the system.
Special hands-free intercom circuit design provides voice without squeal