How Do Wireless Security Cameras Work?
A wireless security camera works by sending a video signal through the air. This is usually done over Wi-Fi, but some models use different wireless protocols.
The wireless signal then connects to a receiver connected to a DVR, the cloud, or a monitor. The receiver then displays the footage.
Some models don’t require the internet to work, but they won’t be able to send solar cctv camera price notifications or offer remote access.
1. Range
Most home security cameras require a wired connection to work. Wired cameras rely on video cables to send data from the camera to a receiver, which connects to a monitor or DVR for viewing and recording. Wireless cameras transmit their data over a wireless network, utilizing the same technology as WiFi and other household devices.
The range of a wireless security camera depends on several factors. The quality of the camera’s lens and image sensor significantly impacts how far the camera can see, with higher-quality models providing clear images at a greater distance. The camera’s focal length also affects the camera’s ability to zoom in on distant objects.
Homes, office spaces, and other environments are subject to a multitude of interference from competing wireless signals from devices like microwave ovens and mobile phones. The amount of interference can dramatically reduce a security camera’s native range. However, there are ways to improve a security camera’s wireless signal strength and improve its range.
2. Motion Detection
Wireless security cameras transmit data using radio frequencies, allowing them to connect to the receiver without the need for long cables. This can be a DVR or NVR, a computer or a mobile app where the footage can then be accessed.
A good quality wireless camera will use a motion detector to detect movement in the area it is covering. It will then send this information to the receiver (either a DVR, NVR or a computer), indicating that something has happened.
Some models can also offer two-way talk capabilities, enabling you to communicate with anyone or anything that enters its field of view. In addition, some can trigger a 105-decibel siren to draw attention to your property and scare off unwanted intruders.
Keep in mind that wireless cameras still need to be connected to a power source, unless they are battery-powered. Therefore, you should test them in their intended location before committing to the full install. Avoid mounting your camera in ways that could damage or strain the electrical components or lens. Also, if possible, you should run a test on your WiFi signal to make sure it can transmit data properly.
3. Audio
Like their wired counterparts, wireless security cameras transmit video and audio signals. What makes them different is their connection to the internet, which allows you to access footage remotely. This raises privacy concerns, especially if the camera has two-way audio capabilities. According to Howell, you can mitigate these concerns by obtaining express consent from those filmed and making sure the cameras are turned off when you’re home.
While wireless technology has improved recently, no system is 100-percent hackproof. However, it’s much more difficult for hackers to decipher data transmitted over the internet than through a cabled network.
Wired systems don’t require an internet connection to work, but wireless security cameras they do need a constant power source and may have long wires that make them harder to hide or take with you if you move. Whether wired or wireless, you should weigh pros and cons of each type before selecting one to protect your home. For example, wired systems are more reliable and less susceptible to interference, but they’re less portable, harder to install, and will likely quit during a power outage.
4. Cloud Storage
The best wireless security cameras can use cloud storage to keep recordings, so you don’t have to keep a hard drive nearby. They’ll also have a siren and two-way audio that can help you scare off intruders. Some also have a feature that lets you block their lens, which can be effective in some situations.
For outdoor security cameras, a camera with a good night vision and an extra-sturdy screw-in mount is a great choice. It’s easy to install, and it will pair automatically with your NVR. It also includes smart person detection, customizable detection zones and flexible recording to SD or encrypted cloud.
CR’s favorite indoor camera is the Eufy Solo IndoorCam C120 because of its superb video quality and excellent data privacy (though it could have better noise reduction). It’s affordable, has multiple smart home integrations, monitoring zones and a microSD card slot for free local storage. It also has a built-in siren and color night vision.
5. Remote Access
Having remote access to your cameras allows you to monitor your home or business from anywhere in the world. You can use your computer, smartphone, or tablet to see what’s going on at your property and watch recordings from your cameras, as well as other equipment you might have connected to the network like doorbells and keypads.
You can also use your smartphone or tablet to turn your camera on and off, as well as change settings and view the live feed. It’s important to note that your wireless security camera will only work if you have a strong Internet connection and your device is connected to your local network, not the cloud.
A wired system has more options for installation, and it’s a great choice in certain scenarios, including homes with old or outdated Wi-Fi networks. It’s also the best option for rooms that you want to keep private, such as bedrooms or bathrooms. Wired systems also typically offer a more stable data stream and can’t be affected by bandwidth fluctuations. However, the initial installation and set-up is usually more complex for wired systems.
