How Do Home Security Cameras Work

Last updated: January 21, 2022


Home security cameras are a video recording device that captures footage of your home and property. You can view the recordings on any internet-connected device or even set up continuous recording (CVR), so you never miss anything! These devices offer high-quality audio with two-way communication to keep you informed as well as motion detection for those times when something is out of place. Let’s talk about how do home security cameras work.

A security camera can do a lot for your home, from catching intruders to providing peace of mind. “Homeowners in general like the idea that they’re able to keep an eye on things and see who’s coming up their front porch,” says David VanWert, founder of VanWert Technology Design Inc. A quick call or click will show you what’s going on at any time through one easy-to-use app!

There are basically two types of security cameras that are wired and wireless. Wireless security cameras work using wifi to transmit surveillance footage to a cloud-based server over the internet, making it easy for people to see what is happening on your phone or computer while you are away from home. Some do not have an AC plug, so they need batteries; others can be plugged into any outlet in order to make them more convenient than ever before!

Wireless security cameras are usually referred to as “smart cameras” because they are controlled with an app on your tablet or smartphone and can integrate with smart home devices. Some also have facial recognition, which is excellent for catching thieves or deterring break-ins by letting you know when someone’s at the door before a stranger has had time to knock. 

Wired home security cameras are wired to an on-site video storage device, either a digital video recorder (DVR) or a networked video recorder (NVR). Every camera has a cable running from the local area for both power and transmitting footage. Wired home cameras don’t use wifi but can be connected to the internet via ethernet connection for viewing remotely recorded data.


Do security cameras record all the time?

Some home security cameras are motion-activated and will record when they detect movement and alert you to the occurrence. These can also be set up for continuous video recording (CVR), which records nonstop even after it has detected no more activity– perfect if your goal is 24/7 surveillance of any given area!

Do you need wifi for home security cameras?

Home security cameras that do not connect to wifi can be wired or wirelessly tethered. These devices are top-rated because they don’t require a router/internet service and offer many benefits over their wifi counterparts.

How do wireless security cameras work?

Wireless security cameras work by sending footage from the camera to a recorder. You’ll be able to access that data through either a built-in device or cloud storage, but wireless systems still require wired power. 

What’s the difference between surveillance cameras and security cameras?

Security cameras can transmit signals from one location back to a monitor at another. On the other hand, surveillance cams are usually connected via an IP network and send data wirelessly using that connection.

How long do batteries last in wireless security cameras?

Batteries for wireless security cameras can last anywhere from one to three years at best, making it very easy to replace them. It’s like unbuttoning a shirt! But most are powered via power cable, which means you’ll need an electrician if they go out.

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