7-inch color indoor unit MY-571

·The indoor extension is designed with 8 zone alarm ports, which can be connected to various standard alarm detection devices such as smoke detectors, infrared sensors, door magnets, and emergency buttons

·Users can observe the images of the surrounding areas of the door machine at any time through the indoor extension

·Users can send help messages to the management center

·Users can unlock incoming devices

·Users can turn off the call ringtone through the mute function

·Modular design, unit failure does not affect system use

·12 chord music ringtones