Specifications:1) Power source: DC 12V (Power from Monitor)2) Camera: 1/4" B/W CMOS (pin hole)3) Lens: f = 4.9mm4) Illumination: 0.1 Lux5) Light source: 4 infrared LEDs6) Power consumption: 2.5W7

Product Name: B/W Video Door PhoneModel Number: SD-880D6Place of Origin: ChinaSpecifications:1) Power source: DC 12V supplied by interphone2) Camera: 1/3" B/W CMOS3) Lens: F3.6 78oadjustable4) Il

Product Name: B/W Video Door PhoneModel Number: SD-920R1SPlace of Origin: ChinaSpecifications:1) CRT: 4" flat tube2) Power source: AC 100V-240 V3) Power consumption: 10 W4) Resolution: 380 TV lin

Product Name: B/W Video Door PhoneModel Number: SD-880D8(ABS)Place of Origin: ChinaSpecifications:1) Power source: DC 12V supplied by interphone2) Camera: 1/4" B/W CMOS (Pin Hole)3) Lens: F3.6 78

Product Name: B/W Video Door PhoneModel Number: SD-880D4-2Place of Origin: ChinaSpecifications:1) Power source: DC 12V supplied by interphone2) Camera: 1/4" B/W CMOS3) Lens: F3.6, 78oadjustable4)

Product Name: B/W Video Door PhoneModel Number: SD-880R3SPlace of Origin: ChinaSpecifications:1) CRT: 4" flat tube2) Power source: AC 100 - 240V3) Power consumption: 10W4) Resolution: 380 TV line

Product Name: B/W Video Door PhoneModel Number: SD-880R19ASPlace of Origin: ChinaSpecifications:1) CRT: 4" flat tube2) Power source: AC 100 - 240V3) Power consumption: 15W4) Resolution: 380 TV li

Product Name: B/W Video Door PhoneModel Number: SD-891D301Place of Origin: ChinaFeatures:1) Visitor calling, dual communication, unlocking2) Monitoring, internal calling3) Infrared LEDs on door statio

Product Name: B/W Video Door PhoneModel Number: SD-891DRT2Place of Origin: ChinaFeatures:1) Visitor calling, dual communication, unlocking2) Monitoring, internal calling3) Infrared LEDs on door statio