1.Stainless steel panel,anti-vandal,waterproof 2.LCD or LED screen 3.Door release by card or PIN ... stations technical parameters: Camera: 1/3 CCD Display: LED or LCD Min. illumination: 0.01LUX Video Output: 1Vp-p/75 Audio ... phones technical parameters: Display: 4 CRT/TFT-LCD, or 4",5'',5.8'' & 7 TFT-LCD Display: 420TV lines(B.W), or ...