Smart Shield Systems
Indoor/Outdoor Mini Dome Camera
The Alarm.com ADC-V821 is a compact, PoE mini-dome for indoor or outdoor use that records in HD 720p, delivers IR night vision (~30 ft), and carries an IP66 weather rating in a vandal-resistant housing. It’s designed specifically for the Alarm.com hosted video platform and connects by Ethernet (PoE or 12 VDC)—no Wi-Fi.

Why Choose This with Smart Shield Systems
Pro placement & aiming: we set height/angle to capture faces at entries and verify IR coverage for night clarity.
Rock-solid networking: we terminate Ethernet/PoE, label the drop, and add the camera to your Alarm.com account per the install guide.
Clean finish: tidy cable management, dome focus check, privacy and notification settings tuned for your space.
Key Features
HD 720p video with H.264 compression for efficient streaming/storage.
Power over Ethernet (802.3af) or 12 VDC—simple, reliable installs.
IR night vision ~30 ft (10 m); 0 lux with IR.
IP66 weather-rated, vandal-resistant exterior.
Ethernet only (no Wi-Fi) to reduce interference and improve reliability.
Product Specifications (At-a-Glance)
Model: ADC-V821 (Indoor/Outdoor Mini Dome)
Resolutions (live/record): up to 1280×720; also 704×480, 352×240 (H.264).
Image sensor: 1/3″ progressive-scan CMOS.
Lens / FOV: 3.6 mm F2.0, 78° angle of view.
Night / low-light: 0 lux with IR, ~30 ft IR range.
Networking: 10/100 RJ-45 Ethernet; PoE 802.3af supported.
Power / draw: 12 VDC (max ~3.9 W) or PoE (max ~4.2 W).
Environment: 14–122 °F (-10–50 °C); <90% RH; IP66.
Dimensions: approx. 4.13″ × 2.36″ (L × H).
In the box: camera, mounting hardware, drill template, Torx wrench, power adapter, install guide.
Compatibility Notes
Works with the Alarm.com hosted video service; add via your Alarm.com account after powering and networking the camera.
No Wi-Fi—requires Ethernet/PoE cabling. If you need dual-band Wi-Fi or analytics, we’ll recommend a newer model.
Popular Use Cases
Covered entries/porches and hallways where a low-profile dome looks clean
Small storefronts and lobbies needing durable, PoE-powered cameras
Frequently Asked Questions
How is it powered and connected?
Use PoE (802.3af) over a single Ethernet run, or power with 12 VDC and still network via Ethernet. We then enroll it to your Alarm.com account per the guide.
Does it have Wi-Fi or two-way audio?
No. The ADC-V821 is wired-Ethernet only and does not support two-way audio. If you need those features, we’ll size a different model.
What night vision range can I expect?
About 30 ft (10 m) with built-in IR; we verify coverage during placement.
Is it weatherproof and durable?
Yes—IP66 (dust-tight and rain-safe) with a vandal-resistant dome housing.
Ready for a clean, PoE dome install?
Smart Shield Systems will mount, focus, and enroll your ADC-V821, verify IR coverage, and tune your Alarm.com settings—so you get reliable, professional-grade video day and night.
Proudly Serving All of San Diego
Address: 9655 Granite Ridge Dr Suite 200, San Diego, CA 92123
Phone: (844) 477‑7627
Email: office@smartshieldsystems.com
Smart Shield Systems is deeply embedded in the San Diego community and exclusively serves residential and commercial clients within the San Diego area.
Our expert team installs advanced security systems - including alarms, surveillance, smart locks, automation, and wellness monitoring - across neighborhoods such as La Jolla, North Park, Carmel Valley, Mira Mesa, Pacific Beach, University City, Scripps Ranch, Kearny Mesa, Mission Valley, and more.
Let’s start a conversation
Book Your Free Consultation call Now
Contact us:
(844) 477‑7627
9655 Granite Ridge Dr Suite 200, San Diego, CA 92123