Yes. Many home security systems don't need Wi-Fi to work. However, you may be giving up certain features in return for this ...

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Typically, DIY home security systems feature a network of wireless (and sometimes wired) sensors, cameras, lighting and other alarms or detectors that connect through Wi-Fi to a central hub and ...

A wireless home security camera relies on a secure Wi-Fi connection to your home’s system or a smartphone app through the Internet. In general, two bandwidths are used, including 2.4 GHz and 5 GHz.