Sell Video Door Phones

Video door phones.Tech. Specifications b&w setsDisplay:4Resolution:420 tvlAutomatic shutdown:60 secsImage sensor:1/3ccdLens f 1.8Wiring:1 cable x 7 wires(2 for door opening)Camera housed in aluminium body.Psu, installation& operating manual as well as protective shelter for exposed installations included.Sets supplied in presentation boxes.Each set accepts up to 2 additional video phones.Colour sets also available.Export trade inquiries welcome(even for small quantities).