01. Display: 4-inch TFT LCD;
02. More than 10 melodies for ring selection;
03. Door station with 1/3-inch Sony CCD cameras, anti-vandal and waterproof panel;
04. To sure the image clearly at night by IR night vision;
05. 4-wire system, easy to install and operate;
06. Accepted to be connected with 4 indoor phones at most to different floor each family;
07. Accepted to be connected with 4 door stations at most to several entrances each family;
08. All indoor phones are accepted to call, transfer calling and communicate with each other;
09. Door station can be installed by surface mount or flush mount;
10. Door station technical parameters:
11. Camera: 1/3-inch CCD (color), CMOS (black/white);
12. Minimum illumination: 0.01 Lux;
13. Video output: 1Vp-p/75Ω;
14. Working voltage: 18V DC ±10%;
15. Working current: ≤500mA;
16. Environment temperature: -40 to 70°.