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4 Units Apartment Doorbell, 7" LCD Monitor Wired Door RFID Multi-family Doorbell Home Apartment Video Intercom System, 2-Way Audio for Home Apartment, Monitor Control Unlocking, 1 doorbell + 4 monitor
- Protocol: wired or wire
- Type: Smart Doorbell
- Model #: SY816HID4-New
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3 Units Apartment Doorbell, 7" LCD Monitor Wired Door RFID Multi-family Doorbell Home Apartment Video Intercom System, 2-Way Audio for Home Apartment, Monitor Control Unlocking,1 doorbell + 8 monitor
- Protocol: wired or wire
- Type: Smart Doorbell
- Model #: SY816HID8-New
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3 Units Apartment Doorbell, 7" LCD Monitor Wired Door RFID Multi-family Doorbell Home Apartment Video Intercom System, 2-Way Audio for Home Apartment, Monitor Control Unlocking,1 doorbell + 6 monitor
- Protocol: wired or wire
- Type: Smart Doorbell
- Model #: SY816HID6-New
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3 Units Apartment Doorbell, 7" LCD Monitor Wired Door RFID Multi-family Doorbell Home Apartment Video Intercom System, 2-Way Audio for Home Apartment, Monitor Control Unlocking,1 doorbell + 12 monitor
- Protocol: wired or wire
- Type: Smart Doorbell
- Model #: SY816HID12-New
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3 Units Apartment Doorbell, 7" LCD Monitor Wired Door RFID Multi-family Doorbell Home Apartment Video Intercom System, 2-Way Audio for Home Apartment, Monitor Control Unlocking,1 doorbell + 11 monitor
- Protocol: wired or wire
- Type: Smart Doorbell
- Model #: SY816HID11-New
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3 Units Apartment Doorbell, 7" LCD Monitor Wired Door RFID Multi-family Doorbell Home Apartment Video Intercom System, 2-Way Audio for Home Apartment, Monitor Control Unlocking,1 doorbell + 10 monitor
- Protocol: wired or wire
- Type: Smart Doorbell
- Model #: SY816HID10-New
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9 Units Apartment Doorbell, 7" LCD Monitor Wired Door RFID Multi-family Doorbell Home Apartment Video Intercom System, 2-Way Audio for Home Apartment, Monitor Control Unlocking,1 doorbell + 9 monitor
- Protocol: wired or wire
- Type: Smart Doorbell
- Model #: SY816HID9-New
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7 Inch LCD display 2-Wire 2pin Wire Video Door Phone Intercom Home doorbell Systems with Power Supply Controller easy install Support Unlocking Night Vision for home Doorbell, 2 doorbell + 2 monitor
- Protocol: wied or wire
- Type: Smart Doorbell
- Model #: SY828F2K22
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5 Units Apartment Doorbell, 7" LCD Monitor Wired Door RFID Multi-family Doorbell Home Apartment Video Intercom System, Monitor Control Unlocking, 2-Way Audio for Home Apartment, 1 doorbell + 5 monitor
- Protocol: wired or wire
- Type: Smart Doorbell
- Model #: SY816HID5-New
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2 Units Apartment 2pin Wire Video Door Phone Visual Intercom Doorbell with 2x 7in TFT LCD Screen Monitor, RFID unlock Doorbell Intercom System with 1 Electric Control Lock, 1 Doorbell + 2 Monitor
- Protocol: wired or wire
- Type: Smart Doorbell
- Model #: SY828NH2IDEND2
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7 Inch LCD display 2-Wire 2pin Wire Video Door Phone Intercom Home doorbell Systems with Power Supply Controller easy install Support Unlocking Night Vision for home Doorbell, 2 doorbell + 1 monitor
- Protocol: wired or wire
- Type: Smart Doorbell
- Model #: SY828F2K21
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7 Inch LCD display 2-Wire 2pin Wire Video Door Phone Intercom Home doorbell Systems with Power Supply Controller easy install Support Unlocking Night Vision for home Doorbell,2 doorbell + 3 monitor
- Protocol: wied or wire
- Type: Smart Doorbell
- Model #: SY828F2K23
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3 Units Apartment Doorbell, 7" LCD Monitor Wired Door RFID Multi-family Doorbell Home Apartment Video Intercom System, 2-Way Audio for Home Apartment, Monitor Control Unlocking, 1 doorbell + 3 monitor
- Protocol: wired or wire
- Type: Smart Doorbell
- Model #: SY816HID3-New
