Smart Shield Systems
Video Doorbell ADC-VDB750
The Alarm.com ADC-VDB750 delivers a 2MP Full-HD picture with HDR, Two-Way Audio, and an expansive 165° (H) × 145° (V) field of view—so you see people head-to-toe and packages on the mat. It connects to dual-band Wi-Fi (2.4/5 GHz), supports Video Analytics (People Detection), and includes IR night vision (~15 ft) for after-dark clarity. IP65-rated and made for real-world temps, it’s a solid upgrade for most wired doorbells.

Why Choose This with Smart Shield Systems
- Pro install, zero guesswork: we size power (transformer or DC supply), mount with wedges if needed, and finish with a clean, code-aware fit.
- Rock-solid onboarding: we add the doorbell via AP mode or WPS (vdb750install.com), enroll it to your Alarm.com account, and test alerts & talk-through.
- Smart alerts dialed-in: we enable People Detection and tune motion/regions for fewer false notifications.
Key Features
- Wide FOV: 165° horizontal / 145° vertical for full-porch coverage.
- Full HD + HDR and IR night vision up to ~15 ft (5 m).
- Two-Way Audio (full duplex) to greet visitors or deter porch pirates.
- Dual-band Wi-Fi (802.11 b/g/n/ac, 2×2 MIMO) for improved range and reliability.
- Video Analytics (People Detection) for faster, more relevant alerts.
- Works with Alarm.com Smart Chime (W115C) if you need an in-home chime or a video-only Wi-Fi boost.
Product Specifications (At-a-Glance)
- Model: ADC-VDB750 (wired video doorbell)
- Max resolution / sensor: 1440 × 1440, 1/2.4″ 2.36 MP, HDR.
- Field of view: 165° (H) × 145° (V).
- Low-light / IR: 0 lux with IR, ~15 ft (5 m) IR range.
- Ingress rating: IP65; Operating temperature: ~-49° to 120°F (-45° to 50°C) (per install guide).
- Wireless: 2.4/5 GHz Wi-Fi (802.11 b/g/n/ac, 2×2 MIMO).
- Power options: AC 16–24 VAC, 10–40 VA (16VAC/10VA recommended); or DC 15–24 V, 6–20 W.
- Dimensions: 1.5″ W × 4.81″ L × 1.18″ D (assembled with back plate).
Compatibility Notes
- Requires an Alarm.com video plan (doorbell counts as one video device). We’ll enroll and label it in your account.
- Works with mechanical or digital chimes; use Power Module for digital chimes and the included resistor if a mechanical chime hums.
Popular Use Cases
- Front entry: see visitors head-to-toe, talk through the door, and get people-only notifications.
- Package monitoring: square 1440×1440 view captures the doormat and doorway in one frame.
Frequently Asked Questions
Use AP mode at vdb750install.com (or 192.168.1.1) or WPS; once online, we add it to your Alarm.com account and verify live view and alerts.
Either 16–24 VAC (10–40 VA) doorbell transformer (16VAC/10VA recommended) or 15–24 VDC (6–20 W). We confirm your wiring and chime type during install.
Yes—IP65 and rated for real-world temperatures noted above. We still prefer a shaded, vertical mount for longevity and image quality.
By default we enable People Detection so you get fewer false alerts from cars, shadows, or trees.
Additional Resources
Download ManualReady for a clearer, smarter front door?
Smart Shield Systems will power, mount, and enroll your ADC-VDB750, tune analytics and Wi-Fi, and make sure chimes and notifications work exactly the way you want.