... monitor. 4+2 wires connection (4wire connection between indoor station and outdoor station, 2 wire for electric lock(not supplied). Max it ... definition Eletrically open two locks. Night vision and waterproof outdoor station. Sixteen melody rings for option. Brightness, contrast, and volume adjustable ... doorphone Intercom with 1 LCD Monitor 1 CMOS/CCD Camera Station -KSRL-10C