With such a wide choice of security alarms available, including both wired and wireless options, you’re likely wondering whether these work without power. Firstly, it’s important to note that there are two main types of security alarms: hard-wired and wireless options. 

Both of these security alarms often contain a backup source of power, usually batteries. Likewise, wireless security alarms are powered by batteries anyways, so in the event of a break-in, you can rest assured knowing your alarm will go off. Without a backup set of batteries in a mains alarm, if the power was to trip or cut out entirely, then your alarm would not work. Therefore, before purchasing an alarm, we recommend checking whether or not there is a backup included.

The remainder of this blog post will discuss more on home security alarms, including what WILL and WON’T work without power.

Your connected smart devices may no longer work

Nowadays, most wireless security alarms also work like central hubs for your smart home, such as a command center. These devices allow you to connect various smart devices, including smart lights, door locks, thermostats, indoor and outdoor security cameras, and more. However, as these devices are connected to a wireless network, if your internet is to lose connection or temporarily drop, then these devices will no longer be controllable via your central hub.

Your security alarm, on the other hand, should still function as normal, so long as you have a backup source of power. Some smart devices may still work, but may require manual switching to turn these on and off, as opposed to controlling these remotely, perhaps via an app of a central command pad or tablet. 

Consider installing battery or hard-wired cameras 

Alongside your main security alarm, you should also consider installing either battery-powered or hard-wired security cameras. Therefore, in the event of a loss of power or WIFI, you still have some coverage of your property. This further increases security, and if placed correctly, may also work to deter crime.

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