Electronics

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Electronics Suppliers and Manufacturers

Telecommunication

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Find Telecommunication from the best B2B online marketplace. Find a reliable Telecommunication supplier, vendor, manufacturer or distributor to get free quote on HKTDC Sourcing.

Telecommunication Suppliers and Manufacturers

Techwall Electronics Co Ltd

This doorphone supports two way communication and can operate in the 865MHz range with clear reception. It has a compact indoor unit with a charging base and offers selectable ding dong, visual and vibration alert for door bell. The doorphone is easy to install and can be used to open electric door locks remotely. 	 Two way communication. 	 Operate in the 865MHz range with clear reception. 	 Digital technique employed to ensure interference free communication. 	 Long communication range of 500m in open space. 	 Remote control of electric door lock. 	 Compact indoor unit with a charging base. 	 Outdoor unit complies to IP54 standard. 	 Low battery warning for both indoor and outdoor unit. 	 Out of range alert for indoor unit. 	 Selectable ding dong, visual and vibration alert for door bell. 	 Extremely easy installation.  

Doorphone

Provide remote access control of electric door locks with this durable and functional wireless doorphone. It has an IP54 outdoor unit for hearing who is at the door and offers selectable ding dong, visual or vibration alert for door bell. This wireless doorphone is easy to install and uses full digital technique to ensure zero interference. 	 Full digital technique used to ensure zero interference. 	 Long communication range of 800m in open space. 	 Operate in the 863 - 870 MHz with clear reception. 	 Remote control of electric door locks. 	 Outdoor unit comply with IP54 standard. 	 Out of range alert and low battery alert. 	 Selectable ding dong, visual or vibration alert for door bell. 	 Outdoor unit can operate with several indoor units. 	 Handset equipped with rechargeable Li battery and charger stand. 	 Outdoor unit speaker volume remotely control from handset. 	 Outdoor unit operates with AC/DC supply or battery backup. 	 Extremely easy installation. 	 Durable and functional.  

Wireless Doorphone

This doorbell uses full digital technique used to ensure zero interference and offers a long communication range of 800m in open space. It offers selectable ding dong, visual or vibration alert for doorbell and has a portable handset with a charging stand. The doorbell has a speaker on the outdoor unit for hearing who&rsquo;s at the door and can be used to remotely control electric door locks. 	 Full digital technique used to ensure zero interference. 	 Long communication range of 800m in open space. 	 Operate in the 863 - 870 MHz with clear reception. 	 Remote control of electric door lock. 	 Outdoor unit complied with IP54 standard. 	 Out of range alert and low battery alert. 	 Selectable ding dong, visual or vibration alert for door bell. 	 Outdoor unit can operate with several indoor units. 	 Handset equipped with rechargeable Li battery and charger stand. 	 Outdoor unit speaker volume remotely control from handset. 	 Outdoor unit operates with AC/DC supply or battery backup. 	 Let users know when someone is at the door. 	 Excellent for improving security.  

This wireless video doorphone has a gate station unit with automatic night vision and can see visitors in the dark. It can open electric door locks remotely and has a long communication range of 300m in open areas. The wireless video doorphone is easy to install and provide good security for homes. 	 Open electric door locks remotely. 	 Gate station unit comply with IP54 standard. 	 Long communication range of 300m in open areas. 	 Out of range alert and low battery alert. 	 Indication of outdoor temperature. 	 Automatic night vision to see visitors in the dark. 	 Gate station unit operated with 12V AC or DC supply and with backup battery. 	 Can be equipped with back gate station. 	 Extremely easy installation. 	 Compact indoor monitor unit with charging station. 	 Provide good security for homes.  

Wireless Video Doorphone

Linkco Int'l Ltd

 	 APP: Live Home 	 Chipset: Via 8315 	 Chipset (CPU): GM8135S, ARM&reg;CPU core 32bit RISC up to 600MHz 	 Sensor: 720P GC1054 CMOS 	 Lens: 140&deg; wide angle 	 Sensor Capability: Support automatic white balance, automatic gain control, automatic backlight compensation 	 Signal to Noise Ratio: &ge;39dB 	 Minimum Illumination: Night Mode: Low trigger (&lt;=8Lux) 	 Night Vision: Double filter automatic switching 6pcs 850nm&Phi;28Mil high power infrared lights night vision 5 meters 	 Video Format: H.264 	 Video Size / Frame Rate: 720P 15fps 	 Video Mode:	 		 Record when there is motion detection 		 Record when someone ring the doorbell 		 Record manually from APP 	 	 	 Battery Type / Capacity: 18650 battery cell,&nbsp; 2600mAh 	 Battery Discharge Time: 3 batteries last for 3-4 months 	 Network Protocol: TCP/IP, HTTP, TCP, UDP, DHCP, DNS, DDNS, NTP, RTP, P2P, etc. 	 WIFI Connection: Support (802.11 b/g/n) 	 Storage: Support TF card 8GB~32GB 	 Working Voltage: DC: 5V 1.5A 	 Working Current: 300mA 	 Charging Voltage: DC 5V / 1A 	 Storage Temperature: 0&deg;C-50&deg;C 	 Operating Temperature / Working Temperature: -10&deg;C-50&deg;C 	 Operating Humidity: &lt;95% 	 Wake-Up Methods:	 		 Wake-up by ringing the doorbell 		 Wake-up by PIR motion detection 		 Wake-up by APP live preview 	 	 	 Application / Use: When there is visitors, the doorbell can record short videos, do two-way talk, and the house owner can see online what is happening outside the house. 	 Features: Wireless installation; ultra-low power consumption; long distance active wake-up; support multiple users view online at the same time 	 AC Power: AC 8-16V  

Smart Door Bell

Venture Global Ltd

Suitable for homes / small offices / warehouses / clinics to useTransmits voice signal up to 300m / 1000ft4 channels selectable and able to expand up to 16 indoor stationsMulti-functional operating modes include broadcasting, private talk, hands-free monitoring, door lock release

Wireless Intercom

Mass Sun Limited

   All basic function of GPS tracking device.  Special function: 
   USB communication interface.   USB camera function (optional).   Using SD card to store data.   ID card function (optional).   Bluetooth for voice function (optional).   Programming and upgrade&nbsp;software by OTA (over the air).   Navigation function (optional).   Swap card reader and bar code reader&nbsp;compatible (optional).   Zero external battery consumption.   Highway toll passing report.   Trailer report.   Antenna cut report.   Anti-brake function.  Hardware features:
   Support 3G band UMTS WCDMA/HSDPA/HSUPA 800/850/1900/2100MHz.   Support GSM/GPRS band 850/900/1800/1900MHz.   Two USB 2.0 full speed (12Mbits per seconds) host port.   One USB 2.0 full speed (12mbits per seconds) device port.   7 outputs (arming, horn, lamp, lock, unlock, trunk, CH2).   5 digital inputs (ACC, door TG+, door TG-, OEM TG+, safety-belt TG-).   2 multi-functional programmable A/D ports (for temperature sensor, fuel sensor).   3 com ports for swap card reader, bar code reader, MDT (NT3000).   Built-in 2000mAH battery.  

Tracking System

Ronghangda Co Ltd

 	 4.3 inch 	 Compatible with 3 indoor secondary/slave units: 7 inch, 4.3 inch or handset 	 Potential-free output to open gate 	 Electric 12VDC output to open electric strike  

Basic Video Door Phone

TechnoVillage Inc.

- Dimensionis 78 (W) &times; 400 (H) &times; 36.5 (D) - Display 3.5&quot; TFT LCD, 240 &times; 400 Capacitive touch panel - Door Lock 13.56-Mhz RF Reader Module (ISO 14443 A, 15693) Random 10 keys with LCD Camera image transfer module Antipanic, safe handle, and dual lock function - Door phone CCD Color Camera Module (30 M pixels or higher) Push-to-call button High-intensity LED dual lamp

Smart Door Phone&Lock

Seko Technology (HK) Int'l Co

The door phone features a 3.8&quot; TFT LCD screen and a convenient remote door lock open function. This doorbell is easy to install with its&nbsp;wall-mount design. The door phone includes an indoor&nbsp;video&nbsp;monitor and an outdoor&nbsp;camera-speaker. 	 Contemporary style. 	 2-wires connection.  

Video Door Phone

 The memory video door phone boasts a large screen display from 4.2-inch, 5-inch to 7-inch for your option. It will automatically take photos when visitors press the door station button for enhanced safety. It comes with an optional memory of 32 pictures or 1,000 pictures.    Excellent workmanship.   Normal video door phone function such as hands-free intercom and lock open.  

Memory Video Door Phone

The intelligent video door phone system features a memory function to record photos the built-in camera has taken. The hands-free intercom&nbsp;provides convenient&nbsp;conversation. This hands-free video door phone is an ideal surveillance and safety unit for the residence community. 	 Remote lock-open function. 	 7&quot; LCD screen with high-resolution display. 	 Weight 650g.  

SHENZHEN KONX SMART TECHNOLOGY CO LTD

Featured here is a 2.4Ghz digital wireless two way intercom video door phone for apartment use. It is comes with an easy to install outdoor camera and a portable indoor monitor. This video door phone flaunts excellent image quality and can be used for monitoring and unlocking the door.&nbsp;

Specifications: 	 2.4Ghz digital wireless two way intercom video door phone/doorbell for apartments. 	 3.5 inch monitor. 	 Applicable for offices, houses, apartments, hotels, buildings and so on. 	 Easy to install outdoor camera. 	 Portable indoor monitor. 	 Can be hung on the wall, or be placed on the desk. 	 Excellent image quality. 	 For users to monitor and unlock the door.  
Features: 	 2.4GHz digital frequency hopping and encryption technology, transmission distance up to 400 meters in free field, robust anti-interference. 	 Clear night vision, can capture images in the dark. 	 Rain shield for the outdoor camera is available. 	 3.5 or 7 inch TFT color panel for indoor monitor. 	 Monitor, unlock, hands-free call and talk. 	 16 chord melodies, melody volume, talk volume are adjustable. 	 Date (only one camera with one monitor system) and time shown on the screen. 	 Indoor monitor could take pictures automatically or by instruction. It could store up to 100 pics with date and time. 	 BL-5J battery of camera and monitor is replaceable and rechargeable. 	 Select power supply for outdoor camera: 	 1) If 100~240V power is available near outdoor camera: 	 Plug in the power adapter to provide 5V power for outdoor camera all the while, if occasionally the power is down, you can add a BL-5J battery into the outdoor camera, which will last work about 20 days. 	 If 100~240vpower is not available near outdoor camera, you can select:&nbsp; &nbsp; 	 A. Add an external solar charger with BL-5J battery into the outdoor camera together. The solar panel must be installed in the place where sunlight directly shines.BL-5J battery can last about 20days for outdoor camera, thus enough sunlight is required within 20days. 	 B. Add one external customized 2000Mah mobile power bank, outdoor camera can work about 240days if power bank is fully charged&nbsp; &nbsp; &nbsp; 	 C. Can work about 20days if added a BL-5J battery only. 	 Wireless unlock control supports power on and power off unlock. 	 One outdoor camera supports up to 4 indoor monitors and vice versa.  
Unlock installation: 	 E-lock and power of e-lock are not included in this product. Wireless control connects w-lock, shares 12V power adapter with e-lock when it works. 	 The system can work together with intelligent lock, electric lock, magnetic lock etc.  

Wireless Video Door Phone

Shenzhen Bestwill Electronics Co., Ltd

  5.6" color TFT-LCD with high resolution and contrast ratio  Handfree intercom  Unlock the eletric-controlled door lock  Ring indicates visitor''s coming  Monitor the view out of door  The outdoor station adapts CMOS or CCD camera to get clear and sharp image  Well weatherproof  Dimension: 54.5x35.5x28.5cm 5PCS/Carton 2865PCS/20FT 5395PCS/40FT 6300PCS/40FT HQ  

Color Video Doorphone

 The handsfree video door phone is an intercom with&nbsp;an outdoor station and a lock release. It features a 7-inch TFT LCD high-resolution screen for an exceptional viewing experience. The waterproof CCTV camera with night vision function makes it suitable for outdoor and night applications.  	 Manual switch from door phone to CCTV monitoring situation. 	 The monitoring duration can be preset in the program.  

  7" color TFT-LCD with high resolution and contrast ratio  Water-proof and durable outdoor station made by aluminum alloy panel  The camera could be turned up/down/left/right to get clear image  Handfree intercom  Monitor the view out of door  16 kinds of rings for your choice  Unlock the electric-controlled door lock  With mini din 4P/6P connector  Dimension: 61x33.6x30cm 5PCS/Carton 2395PCS/20FT 4835PCS/40FT 5650PCS/40FT HQ  

Competition Electronic (ZhuHai) Co Ltd

Featured here is a 7 inch TFT monitor for using as an indoor control panel for smart home appliances. It functions as a video intercom and can be connected with doorbells and open electric locks. This indoor monitor provides reliable home security and can control TV, AC, curtain, window, door, light, dimmer, etc.&nbsp; 	 7 inch TFT monitor&nbsp; 	 Indoor control panel for smart home appliances.&nbsp; 	 Scene mode control: TV, AC, curtain, window, door, light, dimmer, connect to smart plug, etc. 	 Video intercom: can be connected with doorbells and open electric locks. 	 Rectangular shape. 	 Modern and functional design. 	 Easy to install and operate. 	 Provide reliable home security.  

Video Intercom Indoor Monitor

Featured is a wireless video intercom in a trendy design. This video intercom comes with a 2.4-inch high resolution LCD screen for high video quality. The 2 or 4-wire connection between outdoor station and indoor monitors is available for versatile application. 	 420TVL resolution LCD screen. 	 Door-lock open and night vision function. 	 Available in other designs.  

2-Wire Video Intercom

SHENZHEN EEGUARD TECHNOLOGY CO., LTD

7 Inches Home Security Doorbell Interphone Video Door Phone Intercom

Description:
Monitors: 	 7&nbsp;inch color TFT digital screen 	 Hands free 	 Touch buttons 	 Surface-mounted 	 External or Internal power adapter (optional) 	 4&nbsp;wires connection 	 Support 3&nbsp;video channels 	 Supports Maximum Length of Line Connection: 100m 	 Power Supply: AC100-240V /&nbsp;DC15V,0.8A (Optional) 	 Power Consumption: 0.7W-7W 	 TFT Resolution:&nbsp;800 x 480 pixels 	 Dimension:&nbsp;&nbsp;210 x 116 x 25mm  &nbsp;
Doorbells: 	 1/4 High-Definition CMOS color camera 	 800TVL Resolution 	 With night vision 	 Metal case 	 IP66 Waterproof 	 110&deg; View angle 	 4&nbsp;wires connection 	 Surface/pit/corner construction 	 Support lock control 	 Operating Temperature:&nbsp;&nbsp;- 30 &ordm;C to +&nbsp;60&ordm;C 	 Power: DC10 -&nbsp;15V 	 Dimension: 130 x 48 x 13mm  
Functions:
Monitors: 	 Lock control / Broadcast / No disturb / Door-call transfer 	 Make calls between monitors 	 Monitor doorbell or CCTV cameras 	 Monitor listening to another monitor 	 Outdoor panel unlock release 	 Indoor monitor unlock release  &nbsp;
Max. Supports: 	 2 outdoor doorbells + 4 indoor monitors + 2 CCTV cameras 	 1 outdoor doorbell + 4 indoor monitors + 3 CCTV cameras  
Doorbells: 	 Surface / pit / corner construction 	 Support lock control   	 All our models are passed CE, RoHS, REACH certificates, and with 2&nbsp;years warranty, you are welcome to visit our factory or take samples to test our quality  

7 Inches Home Security Video Door Phone Intercom

TCP Android System Smart Life Camera Video Doorbell with Name PlateDescription:  Embedded linux operation system 3D noise reduction Wide viewing angle Supports 1 apartment IR supplement Vandal-proof with full metal case Support anti-disassembly alarm function Central Power Supply TCP/IP, RTSP All In One Exit button Supports Door contact input SupportsTamper alarm Supports Protection grade IK07; IP65Specification: System parametersOperation systemEmbedded linux operating systemVideo parametersAngle of viewH:125°, V:72°Camera2MP CMOS HD cameraVideo compression standardH.265 (default), H264Resolution1920x1080Audio parametersAudio intercom modeFull duplexAudio qualityNoise suppression and echo cancellationLight supplementLight supplement modeIR supplementNetworkNetwork interface10M / 100M adaptive belt POENetwork protocolTCP/IP, RTSPGeneralGateNO (MAX AC/DC30V 4A)Lock controlNO (MAX AC/DC30V 4A)Power supplyPOE IEEE 802.3af / DC15V, 0.8APower consumption≤3W (Standby), ≤4.5W (Working)Apartment max.1Working temperature-40°C to +60°C (-22°F to +140°F)Working humidity10%RH- 90%RH (non-condensing)Dimensions202x110x31mm Supports lock controlAll our models are passed CE, RoHS, REACH certificates, and with 2years warranty, you are welcome to visit our factory or take samples to test our quality

Smart Home Security Intercom Video Door Phone

Home Security Interphone 4.3 Inches Intercom Video Door Phone

Description:
Monitors: 	 4.3&nbsp;inch color TFT digital screen 	 Hands free 	 Touch buttons 	 Surface-mounted 	 External power adapter 	 4&nbsp;wires connection 	 Supports 4 video channels 	 Supports Maximum Length of Line Connection: 100m 	 Power Supply: DC15V, 0.8A 	 Power Consumption: 0.7W-7W 	 TFT Resolution: 480 x 272pixels 	 Dimension: 170 x 116 x 16mm  &nbsp;
Doorbells: 	 1/4 High-Definition CMOS color camera 	 800TVL Resolution 	 With night vision 	 Metal case 	 Waterproof: IP66 	 110&deg; View angle 	 4&nbsp;wires connection 	 Surface / corner construction 	 Supports lock control 	 Operating Temperature: - 30 &ordm;C to +&nbsp;60&ordm;C 	 Power: 11 -&nbsp;13V 	 Dimension: 128 x 43 x 16mm  Functions:
Monitors: 	 Lock control / Broadcast / No disturb / Call transfer 	 Make calls between monitors 	 Monitor doorbell or CCTV cameras 	 Monitor listening to another monitor 	 Outdoor panel unlock release 	 Indoor monitor unlock release  Max. Supports: 	 2 outdoor doorbells + 4 indoor monitors + 2 CCTV cameras 	 1 outdoor doorbell + 4 indoor monitors + 3 CCTV cameras  
Doorbells: 	 Surface/corner construction 	 Supports lock control  &nbsp; 	 All our models are passed CE, RoHS, REACH certificates, and with 2&nbsp;years warranty, you are welcome to visit our factory or take samples to test our quality.  

4.3 Inches Intercom Video Door Phone

 	 7&nbsp;Inch&nbsp;Home Security Intercom Interphone Video Door Phone 	 1080P HD Screen 7 Inches Intercom Home Security Video Door Phone with Memory 	 Description: 	 Monitors: 	 7&nbsp;inch color TFT digital screen 	 Hands-free 	  7&quot;  &nbsp;with a touch button 	 Surface-mounted 	 External adapter 	 4 Wires&nbsp;/ Cat-5 connection 	 Supports 4 video channels 	 Supports Maximum Length of Line Connection: 100 m 	 Power Supply:&nbsp;DC15V / 0.8A 	 Power Consumption: 9W (Max), 2.5W (Standby) 	 TFT Resolution:  1024 x 600  	 Dimension: 216 x 129 x 10 mm 	 Doorbells: 	 1/3&quot; High-Definition&nbsp;color camera 	 Resolution:  1080 P  	 With night vision 	 Metal case 	 110&deg; View angle. 	  Protection Standard: IP 66.  	 4&nbsp;wires connection 	 Surface / corner construction 	 Supports lock control 	 Operating Temperature: - 30 &ordm;C to +&nbsp;60&ordm;C 	 Power: 10 -&nbsp;15 V 	 Dimension:&nbsp;133 x 46 x 20 mm 	 Functions: 	 Monitors: 	 Lock control / Broadcast / Calendar / Alarm clock 	 Capture over 100 pcs images with internal flash 	 Monitor doorbell or CCTV cameras 	 Make calls between monitors 	 Monitor listening to another monitor 	 DVR function, with both Video and audio 	 Answer machine function 	 Auto take pictures from doorbell camera 	 Supports Message leave 	 Can take Images or record video from doorbell, even you are talking with visitor 	 Multimedia manager 	 Photo frame 	 Outdoor panel unlock release 	 Indoor monitor unlock release 	 Type of Signal:&nbsp;CVBS / AHD / TVI / CVI (up to 1080 P) Optional 	 Max. Supports: 	 2 outdoor doorbells + 4 indoor monitors + 2 CCTV cameras 	 1 outdoor doorbell + 4 indoor monitors + 3 CCTV cameras 	 Doorbells: 	 Surface / corner construction 	 Supports lock control 	 All our models are passed CE, RoHS, REACH certificates, and with 2&nbsp;years warranty, you are welcome to visit our factory or take samples to test our quality  

7" HD Intercom System InterPhone Home Security Video Door Phone

7&nbsp;Inch&nbsp;Home Security Intercom Interphone Video Door Phone
1080P HD Touch Screen 7 Inches Intercom Home Security Video Door Phone with Memory
Description:
Monitors: 	 7&nbsp;inch IPS color TFT digital screen 	 Hands-free 	 Touch button 	 Surface-mounted 	 External adapter 	 4 Wires&nbsp;/ Cat-5 connection 	 Supports 4 video channels 	 Supports Maximum Length of Line Connection: 100 m 	 Power Supply:&nbsp;DC15V / 0.8A 	 Power Consumption: 9W (Max), 2.5W (Standby) 	 TFT Resolution:  1024 x 600  	 Dimension: 216 x 129 x 10 mm  Doorbells: 	 1/3&quot; High-Definition&nbsp;color camera 	 Resolution:  1080 P  	 With night vision 	 Metal case 	 110&deg; View angle. 	  Protection Standard: IP 66.  	 4&nbsp;wires connection 	 Surface / corner construction 	 Supports lock control 	 Operating Temperature: - 30 &ordm;C to +&nbsp;60&ordm;C 	 Power: 10 -&nbsp;15 V 	 Dimension:&nbsp;133 x 46 x 20 mm  Functions:
Monitors: 	 Lock control / Broadcast / Calendar / Alarm clock 	 Capture over 100 pcs images with internal flash 	 Monitor doorbell or CCTV cameras 	 Make calls between monitors 	 Monitor listening to another monitor 	 DVR function, with both Video and audio 	 Answer machine function 	 Auto take pictures from doorbell camera 	 Supports Message leave 	 Can take Images or record video from doorbell, even you are talking with visitor 	 Multimedia manager 	 Photo frame 	 Outdoor panel unlock release 	 Indoor monitor unlock release 	 Type of Signal:&nbsp;CVBS / AHD / TVI / CVI (up to 1080 P) Optional  Max. Supports: 	 2 outdoor doorbells + 4 indoor monitors + 2 CCTV cameras 	 1 outdoor doorbell + 4 indoor monitors + 3 CCTV cameras  Doorbells: 	 Surface / corner construction 	 Supports lock control 	 All our models are passed CE, RoHS, REACH certificates, and with 2&nbsp;years warranty, you are welcome to visit our factory or take samples to test our quality  

7 Inch Intercom Inter-Phone Video Door Phone

7 Inch IPS Intercom System Inter-Phone Video Door Phone
1080P HD Touch Screen 7 Inches Intercom Home Security Video Door Phone with Memory
Description:
Monitors: 	 7-inch color TFT digital screen 	 Hands-free 	  Touch&nbsp;Screen  with a touch button 	 Surface-mounted 	 External adapter 	 4 Wires&nbsp;/ Cat-5 connection 	 Supports 4 video channels 	 Supports Maximum Length of Line Connection: 100 m 	 Power Supply:&nbsp;DC15V / 0.8A 	 Power Consumption: 9W (Max), 2.5W (Standby) 	 TFT Resolution:  1024 x 600  	 Dimension: 216 x 129 x 10 mm  Doorbells: 	 1/3&quot; High-Definition&nbsp;color camera 	 Resolution:  1080 P  	 With night vision 	 Metal case 	 110&deg; View angle. 	  Protection Standard: IP 66.  	 4&nbsp;wires connection 	 Surface / corner construction 	 Supports lock control 	 Operating Temperature: - 30 &ordm;C to +&nbsp;60&ordm;C 	 Power: 10 -&nbsp;15&nbsp; V 	 Dimension:&nbsp;133 x 46 x 20 mm  Functions:
Monitors: 	 Lock control / Broadcast / Calendar / Alarm clock 	 Capture over 100 pcs images with internal flash 	 Monitor doorbell or CCTV cameras 	 Make calls between monitors 	 Monitor listening to another monitor 	 DVR function, with both Video and audio 	 Answer machine function 	 Auto take pictures from doorbell camera 	 Supports Message leave 	 Can take Images or record video from doorbell, even you are talking with visitor 	 Multimedia manager 	 Photo frame 	 Outdoor panel unlock release 	 Indoor monitor unlock release 	 Type of Signal:&nbsp;CVBS / AHD / TVI / CVI (up to 1080 P) Optional  Max. Supports: 	 2 outdoor doorbells + 4 indoor monitors + 2 CCTV cameras 	 1 outdoor doorbell + 4 indoor monitors + 3 CCTV cameras  Doorbells: 	 Surface / corner construction 	 Supports lock control 	 All our models are passed CE, RoHS, REACH certificates, and with 2&nbsp;years warranty, you are welcome to visit our factory or take samples to test our quality  

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