Calling video panel of a color video on-door speakerphone COMMAX DRC-4L, Type of fastening - the laid on color calling panel on 1 subscriber. Works with Commax color video intercoms in PAL standard. Electric lock control. Plastic case. CMOS matrix. Camera resolution 540 TVL. Sensitivity 0.1 lx. The panel has a built-in electric lock control relay. Power supply 12 V from the monitor. Standard viewing angle and resolution. Night illumination. Temperature control - from -40 to +40. Dimensions: 100x140x35. Color: Silver