Wired vs Wireless Alarm Systems

The main difference between a wireless and wired alarm system is the cost of maintenance, and for most properties a wired option works out better because the cost of maintaining a wireless system generally outweighs the higher upfront cost of running cable.

Why we usually recommend wired

At Access Alarms we will try to use wired options whenever possible. The only scenario where we may suggest a wireless alarm system is if it is covering a very large area, such as a large warehouse. Access Alarms has installed and serviced security across Brisbane and South East Queensland since 2006, working from our base in Eagle Farm.

The battery trade-off with wireless

In all of our wireless devices we will use a CR123A Lithium battery, which will generally last about eighteen months to three years. This is one of the biggest disadvantages to using a wireless system. When the batteries do eventually run out, it may be at a very inconvenient time. It is not pleasant to hear a constant low-battery beeping at 2am, when you are trying to sleep.

What replacement batteries cost over time

The cost of replacing these batteries each time can also add up surprisingly quickly. Each of these batteries cost around $13-$20, and most detectors will use two batteries at a time.

Let’s use a system with 5 detector alarm system as an example, as these are fairly common. Every couple of years you will need to replace two batteries in every detector, totalling ten batteries each time. This can easily increase your maintenance cost by a few hundred dollars every two years.

The initial cost of installing a wired system may be a little higher than a wireless system, but it will save you money for the years to come.