Security Camera Buying Guides & Resources

Built-In Microphone vs Two-Way Audio: What's the Difference?

Built-In Microphone vs Two-Way Audio: What's the Difference?

Author: BiJianxin
Published: October 27, 2026
Compare built-in microphones and two-way audio security cameras. Learn which features support listening, recording, or visitor conversations before buying.
Is ColorVu a Good Choice for Parking Lots, Entrances, and Warehouses?

Is ColorVu a Good Choice for Parking Lots, Entrances, and Warehouses?

Author: BiJianxin
Published: October 25, 2026
Is ColorVu right for parking lots, entrances, and warehouses? Compare continuous color, Smart Hybrid Light, and IR options by lighting and distance.
How to Find 8MP / 4K Cameras Compatible With Your Exact NVR Model

How to Find 8MP / 4K Cameras Compatible With Your Exact NVR Model

Author: BiJianxin
Published: October 09, 2026
Find 8MP and 4K security cameras compatible with your existing NVR. Check recording resolution, bandwidth, H.265, ONVIF support, and decoding limits.
How to Choose a Camera for Your Existing NVR

How to Choose a Camera for Your Existing NVR

Author: BiJianxin
Published: October 07, 2026
Learn how to choose an IP camera for your existing NVR by checking ONVIF compatibility, recording resolution, bandwidth, PoE power, and smart features.
How Much PoE Power Does a Security Camera System Need?

How Much PoE Power Does a Security Camera System Need?

Author: BiJianxin
Published: August 24, 2026
Calculate a PoE switch power budget for security cameras, then verify per-port limits, uplinks, cable distance, surge protection, and expansion headroom.
Warehouse Security Camera System Buying Guide for Loading Docks

Warehouse Security Camera System Buying Guide for Loading Docks

Author: BiJianxin
Published: August 24, 2026
Plan a warehouse security camera system for loading docks using evidence zones, lens checks, PoE capacity, storage needs, and a practical 12-camera example.
Vandal-Proof Security Camera Buying Guide for Public Entrances

Vandal-Proof Security Camera Buying Guide for Public Entrances

Author: BiJianxin
Published: August 23, 2026
Choose a vandal-proof entrance camera by checking IK10 strength, secure mounting, WDR, lens angle, night coverage, audio policy, and recorder compatibility.
12-Camera vs 16-Camera Security System: Which Size Fits Your Site?

12-Camera vs 16-Camera Security System: Which Size Fits Your Site?

Author: BiJianxin
Published: August 16, 2026
Compare 12-camera and 16-camera security systems by coverage, PoE capacity, storage, expansion room, and complete installation cost before buying today.
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