Model: ATX8840A
Display Monitor: 4 Inches Colored Touchscreen
Type: Indoor
Network: TCP/IP RJ45 Connection
Safety System: 7 Lines Safety System CPR14 Connection
Power Supply: DC12V/2A DC Socket 3W Maximum
Clavier: Touching
Bidirectional Visible Conversation: No
Machine Size: 218X100x40 On Wall
Second Doorbell: Yes

Basic function
Free conversation
Issue information
Open locks in long-distance
Compulsion warning system
Urgent broadcast
Development function
USB wireless network
Secont visible doorbell