Does this system unlock the gate aswell?
We are suggest use Electronic Lock, it can open directly
How to do power supply?
Our doorbell intercom for 110V-240V, no battery
Indoor unit can put the desktop?
Indoor unit can only be installed on the surface wall Can we add another outdoor or indoor unit?
The video intercom system can also be connected in the range of: 4 outdoor to connect 6 indoor units
Does the outdoor have waterproof?
Yes, Level 4 rain protection

Features:
Plastic panel of indoor unit, fashionable and luxury. Little rain and oxidation-proof for the durable aluminum alloy outdoor unit.
9″ color TFT LCD without radiation, low power consumption and high definition.
IR Camera with Night Vision.
Electric lock-control function.
Handfree intercom.
Mute indoor intercom function.
Monitoring the outside of the door.
25 kinds of door bell rings.
Volume, brightness and contrast adjustable.
Easy installation by yourself with adapter and cable we provide in this kit.
Specifications:
Outdoor Camera
Camera: 1/4″ CMOS 700TV Lines
Min. Illumination: 0.5Lux
Video output: 1Vp-p/75Ω
Adapter input: AC100~240V, 50/60Hz
Adapter output: DC15V/1.2A
Wires for Lock-camera connection.
Working Temperature: -20°C to 50°C
Installation: Wall mounted
Material: Aluminum alloy material
Dimensions: 50×27×125mm
Monitor
Screen: 9″ TFT/LCD
Power source: AC100V-240V / 50-60Hz
Effective pixels: 480 * 234 * 30
Power: ≤14W(operation), ≤2W(standby)
Wiring: 4 wires
Dimensions: 230×165×20mm
Package includes:
1 * Outdoor Unit (Camera)
1 * Indoor Unit (Monitor)
1 * DC15V Adapter
1 * 5m 4-core Connection Cable
1 * 5-core Connection Cable
1 * 2-core Connection Cable
1 * 4-core Connection Cable
1 * User Manual
1 * Package of Screws

Product Features

• Doorbell Intercom- The wall-mounted 9-inch color monitor and outdoor doorbell with integrated HD camera ensures you can both see and speak with all visitors.
• Monitor 9-inch high-definition display, wall-mounted, requires 110-240 power supply (included) can directly talk to the visitor, do not miss any customer
• 700TVL IR night vision camera, you can see clearly who rings the bell even at night. Waterproofing and oxidation-proof for the durable alloy outdoor unit.
• Main 7 functions- intercom, surveillance, ringtone, unlock, waterproof, night vision and 25 ringtones by pressing the ring button on the indoor monitor.Volume, brightness and contrast are adjustable.
• The video intercom system Both are surface mounted and easy to install，Max connection is 100meters,about cable: RVV4* 0. 30mm cable or CAT network cable for 30m(95feet) between camera and monitor, RVV4/RVV5* 0. 50mm cable for 50m (150feet), RVV4/RVV5* 1.0 mm cable for 100m (320feet)