Gold Member Since 2012
Audited Supplier
Shenzhen Ealink Technology Co., Ltd.

Video Door Phone, Intercom System, Home Security manufacturer / supplier in China, offering 4.3" Home Security Video Door Phone Doorbell Intercom System, 7′′ Video Phone Door (M1707A), 7" Commax Video Door Phone with Touch Key (M2207B+D25AC) and so on.

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Supplier Homepage Product 4 wire video door phones Indoor monitors 4.3" Home Security Video Door Phone Doorbell Intercom System

4.3" Home Security Video Door Phone Doorbell Intercom System

Purchase Qty.:
100-499 500+
FOB Unit Price: US $34 US $28
Purchase Qty. (Pieces) FOB Unit Price
100-499 US $34
500+ US $28
Get Latest Price
Port: Shenzhen, China
Production Capacity: 50, 000PCS/Month
Payment Terms: T/T, Western Union, Paypal

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Basic Info
  • Model NO.: M2804A
  • Type: Wired
  • Voice Service: With Voice Service
  • Certification: RoHS, CCC, FCC, UL, CE, ISO9001
  • Connect Cable: 4 Wires
  • TFT Resolution: 480*272
  • Additional Monitors Quantity: up to 3
  • Dimension: 180*112*17mm
  • Cetificate: CE & RoHS
  • Transport Package: Neutral / Customer Packing
  • Origin: Shenzhen, China
  • Night Vision: With Night Vision
  • Color: White / Black
  • Installation: Surface-Mounted
  • Name: 4.3" Video Door Phone
  • Connection.: 100meters
  • Video Channels Quantity: 2 Doorbells
  • Keys: Touch Keys
  • Warranty: 2 Years
  • Trademark: EALINK
  • Specification: CE, FCC, RoHS
  • HS Code: 85176990
Product Description

4.3" Color Video Interphone Home Security


Main functions:
1. Lock control
2. Voice monitor
3. Intercom transfer / call / broadcast
Support 2 door panels or 1 door panel and 1 cctv camera.

Special functions:
1. Door monitoring function;
2. Call transfer to the other monitor;
3. Internal-communication;
4. Color Contrast, Brightness adjustment;
5. DO NOT DISTURB setting;
6. Visitor-call transfer;
7. Indoor monitor listening function;
8. Broadcast function;

Detail description: -
Basic function
1. Intercom function: See the image of the visitors and talk with them through the Video Door Answering Systems.
2. Door monitoring function: You can see what going on in front of the doorbell or CCTV camera on the monitor at any time through the Door monitoring system.
3. Lock control: Unlock the door through the intercom door security system.
4. Optional volume adjustment: According to residential needs, the chime volume and talking volume can be adjusted;
5. Appropriate color, contrast and brightness may be adjusted to get better displaying;
6. Don't disturb choice: The best video door phone can set No-Disturb state if you don't want to be disturbed by visual doorbell ring.

Expand function
1. The 4 wire villa intercom system supports visitor-call transfer between monitors and make internal call among intercoms;
2. The smart home system supports indoor monitor listening function. It can be active if you have no less than 2 indoor monitors. Indoor units can choose the monitored number and the listening time is 8 hours;
3. Broadcast: User can broadcast to all other monitors in the system;

1. Display screen: 4.3 inch Color Analog LCD
2. Resolution: 480*272
3. Power Supply: AC100-240V
4. Video input: 1Vp-p(75Omh)
5. Power consumption: 0.15w - 7 w
5. Wiring mode: 4 wires/100m
6. Dimension: 180(W)× 120(H)× 17(D)

Support Solutions:
Solution 1: 1 doorbell + 2 monitors + 1 CCTV cameras
Solution 2: 2 doorbells + 4 monitors

All our models are passed CE & RoHs certificate, and with 2 years warranty, you are welcome to visit our factory or take samples to test our quality.
1LCD4.3" digital LCD
2Resolution480 x272
3IntercomHands free, 25 chord ring tones. 3 volume options: high/normal/low. The set parameters will not store after power cut off.
4Wire connection4 wires (video/ power /ground /audio)
5Audio300mVp-p  (1KHz,300Ω)
6Audio distortion≤3%
7Frequency response400-3.5K
8Intercom distance60m(RVV4x0.5)100m(RVV3*0.5+SYV75-3)
9video1Vp-p  75Ω(input)(NTSC,PALauto)
10ButtonsSensor buttons*7 + blue LED * 4 (light on all time)
12Support outdoor camera2 (5PIN*1,4PIN*1)
13Support CCTV1 (for door panel 2 port)
14Intercom between MonitorsYes (4 wire connection)
15Unlock waySignal output, not power output for unlock.
16Power switchSlide Switch (at the bottom of monitor)
17Working voltageDC13.5V 0.7A,
18Working consumption7W(MAX),0.15 W(standby)
19Working temperature0ºC to +50ºC
20Storage temperature-20ºC to +70ºC
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