Operating voltage:	DC16.5V~20V
Quiescent power consumption:	<30mA
Working power consumption:	<300mA
Work temperature range:	-30°c ~ +50°c
Working humidity range	45%-95%
Display element:	1/3" CCD
Lens:	92 degree wide-angle
Minimum illumination:	0.3 Lux@F2.0
Horizontal resolution:	400 CCIR Line
Infrared diode:	Installed
Video- out:	1 Vp-p 75 ohm

• Direct-call type button design, simple and convenient • High-resolution CCD • Unlock by ID or IC card l is optional. • Function of calling, video talk-back, unlocking and so on. • Monitoring Door station function from Indoor unit available • Users can customize their room number, flexibility and changeable.• Aluminum alloy panel • European-style designs, elegant noble • Adjustable camera view position • Background light button with name plate • Integrated with ID card access function • One Door- station can connect to 32 indoor phones • Suit for buildings with multi-floors (2×3, 2×4).