21st Century Distributing

MEMBER

2026081101

www.alarm.com

Enlarge

Printable Spec Sheet(.pdf)

Alarm.com ADC-VDB775 | WHITE 4MP Video Doorbell (Replaces ADC-VDB770 White)

21st Part Number:	CAMALAADCVDB775
Manufacturer:	Alarm.com
Manufacturer's PN:	ADC-VDB775

Shipping Weight: 1Lbs.

Dimensions: H:5.26 x W:1.81 x D:1.34

Specs:

Alarm.com ADC-VDB775 | WHITE 4MP Video Doorbell

FOV: 150° V, 150° H

Recording Compression: H.264

Image Sensor: 1/3.11"

Max Resolution: 2048 x 2048

Ingress Protection: IP65

Wi-Fi: 802.11 b/g/n/ac/ax, 2.4 & 5 GHz

Dimensions (W x L x D): 1.81 x 5.26 x 1.34" (46 x 133.5 x 34 mm)

IR Range: Up to ~15 ft (5 m)

Low-light sensititvity: 0 lux with IR

Operating Temperature: -58°F – 122°F (-50°C – 50°C)

Operating Humidity: <95% (non-condensing) RH

Power: AC transformer: 16-24 VAC, 10-40VA (16VAC, 10VA recommended)

DC transformer: 18-24VDC, 12-30W

Included accessories

Alarm.com Premium Video Doorbell Camera (ADC-VDB775)

ADC-VDB775 wallplate

Mechanical Chime Dongle (ADC-VDBA-MCD)

Wall anchors (x2) & ST3.5 x 22mm screws (x2)

Installation card with scannable QR code

Features:

4 MP Video with high dynamic range

Video Analytics with people, animal, and vehicle detection

Package detection

Battery-less design

3 simultaneous Video Analytics rules

Directional tripwires for Video Analytics rules

Full duplex two-way audio

Perimeter Guard® and manually triggered Warning sounds for proactive deterrence

Overview:

The VDB775 video doorbell uses built-in AI to recognize familiar faces and tell the difference between people, packages, vehicles, and animals.

Directional tripwires and proactive deterrence features alert you early and help keep unwanted visitors away.

Upsell customers with the new ADC-VDB775 video doorbell. It offers must-haves like two-way audio, vivid 4MP video, person and package detection, plus new-todoorbell vehicle and animal detection. Directional tripwires alert when someone approaches, not when the family heads out. Support for MicroSD onboard recording provides 24/7 encrypted footage, while Bluetooth Enrollment and updated recording rule settings make installation easier than ever for your technicians.

Review:

Dealers Only

Toll Free: 800.849.0647

Phone: 919.779.0273

Fax: 919.779.8994

Hours:

(see individual branch for hours)

Introduction

About Us

Ordering Info

F.A.Q

Home Page

Forms and Contacts

Satisfaction Survey

Training Events

Garner Location:

(Corporate Headquarters)

21st Century Distributing

529 Dynamic Dr.

Garner, NC 27529

8:00am-5:30PM Eastern Mon-Fri

Direct Number: (984) 444-8581

Charlotte Location:

21st Century Distributing

1432 Center Park Dr.

Charlotte, NC 28217

8:00am-5:30PM Eastern Mon-Fri

Direct Number: (980) 224-5577

Buford Location:

21st Century Distributing

2718 Brickton North Dr.

Buford, GA 30518

8:00am-5:30PM Eastern Mon-Fri

Direct Number: (470) 655-0128

Orlando Location:

21st Century Distributing

524 Mid Florida Dr. ste 205

Orlando, FL 32824

8:00am-5:30PM Eastern Mon-Fri

Direct Number: (321) 203-4531

Nashville Location:

21st Century Distributing

4021 Travis Drive

Nashville, TN 37211

8:00am-5:30PM Central Mon-Fri

Direct Number: (629) 206-9152

Pompano Beach Location:

21st Century Distributing

1590 NW 27th Avenue Suite # 6

Pompano Beach, FL 33069

8:00am-5:30PM Eastern Mon-Fri

Direct Number: (754) 205-9057

Marietta Location:

21st Century Distributing

1750 Enterprise Way ste. 111

Marietta, GA 30067

8:00am-5:30PM Eastern Mon-Fri

Direct Number: (470) 905-3397

Gaithersburg Location:

21st Century Distributing

831 Russell Ave

Gaithersburg, MD 20879

8:00am-5:30PM Eastern Mon-Fri

Direct Number: (240) 744-4440

*Nashville Branch is open until 6:30pm Eastern

8:04 PM Tuesday, August 11, 2026

Debug Off