HD Video Doorbell

HD Video Doorbell


Introducing the latest addition to Alarm.com’s family of video doorbells — the ADC-VDB750. This doorbell offers crystal clear 2MP picture and an expansive 165° horizontal and 145° vertical Field of View so customers can see and do more at the front door.

Alarm.com’s powerful People Detection and crisp Two-Way Audio help reduce false notifications while bringing increased awareness and allowing users to communicate with visitors. Plus – a wide range of operating temperatures increase install flexibility making this a great choice in any environment.



  • Expansive 165° horizontal and 145° vertical Field of View ensures customers get a full picture of what’s happening at their front door
  • Video Analytics with rapid People Detection for faster, more relevant alerts and fewer false notifications
  • Full HD resolution, High Dynamic Range (HDR), and infrared night vision
  • Two-Way Audio
  • Compatible with the Alarm.com Smart Chime (W115C)
  • 2MP live video and saved clip viewing via the app and customer website
  • Dual antenna (2×2 MIMO) Wi-Fi for improved range (2.4 GHz and 5 GHz)
  • You may need a new doorbell transformer. Most builder-grade transformers are just enough to power a doorbell button, not an HD video device. Just like Ring, and Nest, it’s common to need a more powerful transformer to properly power the device. You can change this on your own if you’re capable and trained, or have an electrician do it for you (most expensive option), or we can install one for you for $39. You need a 16V30VAC transformer before can install our video doorbell.
  • We require at least 5 mbps UPLOAD (not download) speed, per camera, at the outdoor location of the camera. Google search ‘internet speed test’ and while on wifi, standing where you want the camera, and then run the test. Look at your upload speed, not the download speed.
  • A wifi extender, or mesh network may be needed to allow the cameras to function properly. Note: Extenders do not boost your speed, it only extends the reach of your existing speed. We sell and install a basic extender for $40. Mesh networks like Orbi or AmplifyHD can help boost your numbers, but that is something that you would need to buy and install before we arrive. 


Recording compressionH.264
Ingress protectionIP65
Max resolution1440 x 1440
Image sensor1/2.4″, 2.36 MP, HDR
Lens/angle of view165° horizontal, 145° vertical
Low-light sensitivity0 lux with IR
IR rangeUp to 15 feet (5 meters)
Image adjustmentsFlip, brightness, contrast, saturation, sharpness, exposure
Wireless connectivity802.11 b/g/n/ac, 2.4 & 5 GHz
Operating temperature-58°F – 122°F (-50°C – 50°C)
Operating humidity< 95% (noncondensing) RH
Dimensions (W x L x D)1.5 x 4.81 x 1.18″ assembled with back plate (38 x 122 x 30 mm)
Activity DetectionAdvanced Video Analytics for People Detection
AudioTwo-Way Audio (Full Duplex)

Power requirements

AC transformer16-24 VAC, 10-40VA (16VAC, 10VA recommended)
DC transformer15-24 VDC, 6-20W

Status light guide

LED patternDescription
OffOff.svgPower off
Blinking yellowLED blinking amber.svgCamera power cycling (press and hold button for 40-45 seconds)
Solid redLED solid red.svgNo local or Internet connection
Blinking redLED blinking red.svgPower on, camera booting
Alternating red and greenLED alternating red green.svgCamera resetting to factory default (press and hold button for 45-50 seconds)
Solid greenLED solid green.svgConnected to Alarm.com
Blinking greenLED blinking green.svgLocal network connection
Blinking blueLED blinking blue.svgWPS mode (press and hold button for 30-35 seconds)
Blinking whiteLED blinking white.svgWi-Fi Access Point mode (press and hold button for 35-40 seconds)
Alternating blue and greenLED alternating blue green.svgFirmware update

Family Owned Dallas Home Security Company Since 1978

We are the largest independent alarm company in Texas, family owned and operated since 1978. Two generations of family are on the job, and now offering multiple home services.

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What our customers say

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From the first phone call to the actual use of our security system we have been 100% satisfied! The technician was knowledgeable and courteous. He was able to answer all my questions and get the system up and running in no time. Thank you Smith Thompson Home Security for making our home more secure and at an affordable price to do so!!!!

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Recently for our home in downtown Houston! I was referred to Smith Thompson by a friend after expressing frustration with some of the larger brands that lock you into a 3-year contract. We called to inquire about the most cost-effective…

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