... opening vehicle doors.Automatic arm locking during lifting and automatic unlocking when arms reach floor.Self-supporting base makes installation possible ...
... door phone with MMS alarm function video intercom,monitoring and unlocking arm/disarm,message leaving/readin Shenzhen Wanfengda electronic is a ... outdoor station :1: MIC2: Camera3:IR lighting4:Calling indicator light5:Unlocking indicator light6:Calling button7:Speaker8:Connection jack for indoor unit9 ...
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