Spec Sheet Preview:  The Alpha Communications ® / Golmar 1131/AL 3  Button Entry Video Station is a compact, attractive  lobby/entry station to be used with  C O L O R   or  B&W type Platea and/or Szena apartment video  Station units. Made of 1.8mm thick anodized aluminum, the 1131/AL   (when used with the EL531 module) features a  built-in hi-resolution color camera with electronic iris,  infrared illuminators (for night vision). The 1131/AL  includes 3- heavy-duty metal call pushbutton switches  and built-in nameholder d "¦  View Spec. Sheet
Outside Dimensions: 5.30"W X 9.00"H (135mm W x 229mm H)