The main difference between wired and wireless alarm systems generally comes down to installation scenario and cost. Generally, wired and wireless alarm systems offer the same features – the only difference is that one system is powered over cable, while the other is powered over bettery.
It is typically cheaper to use a wired system if you are pre-wiring a house or have easy access to run cables. However, if a technician is unable to run cabling on your property, you will need to use a wireless alarm.
While the hardware costs are more expensive, labour costs are lower. Wireless Alarms are still a perfectly good option for an alarm system as detection devices draw very small amounts of power, meaning that battery life can last up to 5 years.
In most cases, the total cost (hardware + installation) of a wired or wireless alarm will end up being similar. Despite wired systems being cheaper to purchase, extra labour and material costs involved during installation often bring the total price to that of a wireless alarm.
That being said, regardless of whether you choose a wired or wireless alarm, installation costs are still subject to a variety of factors based on the difficulty, time required and additional material costs (e.g. extra cabling) of installation.