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Automatic Music Play/pause When Headphones Are Put On/removed
Selectable Ring Cadence (standard Or 2 Short Rings)
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120V includes GRE-6
It has an HI/LO proximity voltage detector with two voltage ranges: 50V-4kV AC (LO) and 4kV-500kV AC (HI)
Doorbird D21DKH, IP VIDEO DOOR STATION, RAL 8011, stainless steel, powder-coated, semi-gloss, Part# 423888890 Speco O4VB1 Automatic Music Play/pause When HeadphonesThe efficient Doorbird D21DKH 423888890, IP VIDEO DOOR STATION, RAL 8011, stainless steel, powder coated, semi gloss is for multi tenant residences and buildings with up to 500 units. Features: Surface and flush mount possible, housings sold separately LAN connection (PoE capable) 2 way audio Ultra wide angle lens, 720p, night vision, 12 IR LEDs 4D motion sensor, RFID reader Keypad, display module 2 freely configurable bistable switching relays
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