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

Product Name: B/W Video Door PhoneModel Number: SD-880R12SPlace of Origin: ChinaSpecifications:1) CRT: 4" flat tube2) Power Source: AC 100V - 240V3) Power consumption: 10W4) Resolution: 380 TV li

Product Name: Color Quad ProcessorModel Number: SD-4504Place of Origin: ChinaSpecifications:1) Refresh rate:a) NTSC: 60 fields/secb) PAL: 50 fields/sec2) Resolution (H x V):a) NTSC: 860 x 525b) PAL: 8

Specifications:1) Power source: DC 12V (Power from Moniter)2) Camera: 1/4" color CMOS3) Lens: f = 3.6mm4) Illumination: 0.1 lux5) Light source: 6 infrared LEDs6) Power consumption: 2.5W7) Operati

Specifications:1) LCD: 5.6" color TFT2) Power source: AC 100 - 240V3) Power consumption: 10W4) Resolution: 960(W) x 284(H)5) Chime: ding dong chime6) Operating temperature: -10° - +50°7)

Specifications:1) LCD: 3.5" color TFT2) Power source: AC 100 - 240 V3) Power consumption: 10 W4) Resolution (W x H): 480 x 2345) Chime: ding dong chime6) Operating temperature: -10 ~ 50°C7) I

Specifications:1) LCD: 4" color TFT2) Power source: AC 100 - 240V3) Power consumption: 10W4) Resolution: 480(W) x 234(H)5) Chime: ding dong chime6) Operating temperature: -10 ~ 50oC7) Installatio

Specifications:1) Power source: DC 12V (Power from Monitor)2) Camera: 1/4" color CMOS3) Lens: f = 4.9mm4) Illumination: 0.1 lux5) Light source: 5 infrared LEDs6) Power consumption: 2.5W7) Operati