Functions: 1) The outdoor unit can call the indoor unit, and the indoor unit can unlock the outdoor by remote control2) Each apartment has its own password to unlock the outdoor3) The outdoor unit can

Functions:1) The outdoor unit can call the indoor unit, and the indoor unitcan unlock the outdoor by remote control2) Each apartment has its own password to unlock the outdoor3) The outdoor unit can b

Functions:1) Communicate between the outdoor unit and the indoor unit2) Unlocks with password3) Connected to management machine by the online host unit 4) Can be mated with the coding intercom system

Features:1) Screen: 4-inch flat CRT (B/W)2) Type: TKS-401A (Sony monitor)3) Rating voltage: 12V DC +/- 10%4) Current:5) Video frequency signal: 0.7-1.4 Vp-p / 7.5-ohm6) Working temperature: -20 –

Functions: 1) Can watch and talk with a visitor through the screen of the indoor unit and unlock the outdoor2) Can call the management machine by pressing "Alarm" key on the indoor unit 3) T

Functions:1) Can watch and talk with a visitor through the screen of the indoorunit and unlock the outdoor2) Can call the management machine by pressing "Alarm" key on theindoor unit3) The u

Functions:1) Can be connected with management machine by the online host2) Single key calls the indoor unit from the outdoor unit3) Unlock or disarm by ID card of the indoor unit4) Can be mated with t

Functions :1) Password: 1 - 6 digits2) Capacity: can be mated with 331 units3) Alarm delay time: 1 – 1,000 seconds4) Monitor time: 1 – 1,000 seconds5) Display: 4 digital6) Alarm number: 3

Functions :1) 4 digital displays in management center2) Management center can be mated with 331 host units3) Direct dialog can be realized between management center and host unit4) Management center c