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Name: 7-inch High-Definition Color LCD Four-Wire Visible Intercom Doorbell

Model: WJ728C8

Type: 1:1<One outdoor unit paired with one indoor unit, also known as 1:1>

Usage: Suitable for luxury villas, residential buildings, and factory entrances and exits.

Function Description:

When the visitor lightly presses the outdoor unit's call button, the indoor unit will automatically open the image and play the preset ringtone. Press the indoor intercom button to communicate with the visitor. If you need the visitor to enter, press the unlock key to automatically open the electric lock (this product does not include an electric lock). You don't need to go to the door to open it; if you want to check the outdoor scene, press the surveillance key. During rest time, if you need to avoid being disturbed, press the indoor intercom button for two seconds to activate this function. If a visitor presses the outdoor unit's call button at this time, only the image will be displayed without the ringtone. Press any key on the indoor unit to exit this function.

【Functional Features】

◆7-inch color digital LCD screen, no radiation and low power consumption, truly high-definition wide-screen display.

◆ Hands-free two-way radio function

Electrical Control Unlocking Function

◆ Surveillance function outside

Indoor Intercom Function

Do Not Disturb Function

The brightness, color, and volume of the indoor unit can be adjusted at will.

Indoor unit with ultra-slim design, acrylic panel, touch buttons, and touch buttons, showing a beautiful and luxurious atmosphere.

Up to 24 chord ring tones are available, beautiful and melodic.

◆ Outdoor unit is beautifully durable with night vision infrared function.

The effective distance of the connection can reach 200 meters, and the image and the intercom work normally.

Color box packaging, 10 pieces/case.

【Performance Parameters】

Display resolution: 800*RGB*480

Format: PAL/NTSC (optional)

Supply Mode: Switching Power Supply AC220V-50Hz DC15V 1.2A

◆ The entire machine current: less than 800mA

Call delay time: 120S ± 10%

Monitoring delay time: 40S ± 10%

◆ Camera Sensor: High-definition Color COMS up to 700 lines

◆ Outdoor unit infrared night vision function: low open 10LUX infrared on

Indoor unit dimensions: (W) 216 x (H) 138 x (D) 10 mm

◆ Outdoor unit dimensions: (W) 50 x (H) 125 x (D) 35 mm

Indoor unit installation method: wall-mounted

◆ Outdoor unit installation method: embedded or wall-mounted

◆ Connector: 4-core connector with a standard 1-meter length + 2-core terminal wire (for electrical control lock)

Product List

◆ One indoor unit

◆ Outdoor Unit 1

Indoor unit hanging board 1 piece

◆4P Connector Cable 1 piece (Standard 1 meter, optional)

One lock-opening line

1 Switching Power Supply

Screw Pack 1 Bag

Instruction Manual 1 (English or Chinese)