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: it is easy to install, it does not require any rewiring - (no new wires!), any product with Z-Wave on the box works with any other, it is affordable - get started with minimum investment and easily add on more products, it is reliable, it has been on the market for over ten years, it is secure - same encryption as online banking, there are lots of choices - styles, price points, colors, etc., there already are over 20 million products in homes worldwide, Z-Wave is used by the biggest brand names, 9 out of 10 leading security companies use it. You can find all device information on Z-Wave Products. Z-Wave software along with the devices is great for home automation in old (existing) buildings.