Z-Wave is a wireless communications standard. The technology uses a low-power RF radio embedded or retrofitted into building electronics devices and systems. Currently there are nearly 1000 different Z-Wave products that all work together so you can choose the products that are right for your project. The main benefits of Z-Wave are:
Easy to install
Does not require any rewiring - no new wires!
Any product with Z-Wave on the box works with any other
Affordable - get started with minimum investment and easily add on more products
Reliable - Over ten years in the market
Secure - same encryption as online banking
Lots of choices - styles, price points, colors, etc
Already 20 million products in homes worldwide
Biggest brand names use Z-Wave
9 out of 10 leading security companies use Z-Wave
You can find all device information in Z-Wave device database
Z-Wave software along with devices is great for home automation in old (existing) buildings.