The Key Difference
A hardwired system connects the control panel to each device with wiring run through walls, ceilings and floors, and typically powers every component. A wireless system communicates by radio signal; only the control panel is plugged in, while sensors run on batteries.
Side-by-Side Comparison
| Factor | Wireless | Hardwired |
|---|---|---|
| Installation | Fast and minimally invasive | Wiring through walls; best during construction |
| Range to panel | ~500 ft (repeaters can extend) | ~1,000 ft |
| Number of devices | Typically 40–50 | Virtually unlimited |
| Maintenance | Replace sensor batteries about yearly | Very little |
| Adding devices | Easy | Requires new wiring |
| Moving locations | Easy to take with you | Must be removed and reinstalled |
| Equipment cost | Higher | Lower |
| Labor cost (existing building) | Lower | Higher |
Installation
Wireless systems are much easier to install and are often pre-programmed to work together out of the box. Hardwired systems require running cable, which in an existing building is fairly invasive — unless your system goes in during construction.
Range & Coverage
Hardwired systems generally cover about 1,000 feet between the panel and sensors; wireless systems roughly half that, and less through concrete or other dense materials. For almost every home and small business, that's plenty — and signal repeaters can fill any gaps.
Cost
Wireless equipment usually costs more to buy, but in an existing building the lower labor cost often makes the total project less expensive. In new construction, hardwired is often the economical choice.
Our Recommendation
Tell us about your building and goals — we'll recommend the right fit and install it properly. Learn more about commercial security systems and home security systems.
Frequently Asked Questions
Are wireless security systems reliable?
Yes. Modern wireless systems are very reliable. The main upkeep is replacing sensor batteries, typically about once a year.
Can wireless and hardwired devices be combined?
Many control panels support both, so you can keep existing wired sensors and add wireless devices where running cable would be difficult.
