China Factory Cheap Front Door Buzzer Entry - 4.3″ Mechanical Pushbutton Indoor Unit Model B4 – CASHLY Factory and Manufacturer

Factory Cheap Front Door Buzzer Entry - 4.3″ Mechanical Pushbutton Indoor Unit Model B4 – CASHLY

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We'll make every effort and hard work being outstanding and excellent, and speed up our techniques for standing during the rank of global top-grade and high-tech enterprises for Audio Door Entry Systems, Button Sip Video Door Phone, Intercom Doorbell With Camera, We welcome customers, business associations and friends from all parts of the world to contact us and seek cooperation for mutual benefits.

Factory Cheap Front Door Buzzer Entry - 4.3″ Mechanical Pushbutton Indoor Unit Model B4 – CASHLY Detail:

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Specification

Condition	parameters
Operating voltage:	DC17V~20V
Quiescent power consumption:	<20mA
Workingpower consumption:	<600mA
Work temperature range:	0°c ~ +45°c
Working humidity range	45%-95%
Display element:	4inch color screens
Horizontal resolution:	CCIR350 Line
Scan frequency	CCIR H: 15,625±400HZ V: 47±3HZ

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