Z-Wave is a wireless standard which uses mesh networking to communicate between devices. Mesh networking allows signals to repeat through multiple devices until it gets to the desired home automated device. The result is that Z-Wave networks become more reliable as they grow in size. The distance limit a Z-Wave signal will travel is 100 feet, but that’s in open-air. Through walls, the limit is reduced to approximately 50 feet. Z-Wave uses a RF frequency in the 900MHz range so it won’t interfere with other 802.11 wireless protocols.

Z-Wave is run by the Z-Wave Alliance, which tests and makes sure Z-Wave devices work between multiple companies.

Plus Side:

• Wireless and RF signal can travel through walls
• Does not interfere with other wireless signals
• Z-Wave alliance makes sure Z-Wave hardware works between different companies.
• Inexpensive
• Reliable

Down Side:

• Not open source.
• Wireless distance limit
• Signals are not encrypted which could cause problems for security commands
• Limited to 232 devices

Z-Wave Lights

Z-Wave USB Stick #HA23C	Z-Wave Plug-In Lamp Module #HA03C	Indoor Wall Switch #HA06C	Outdoor Lamp Module #HA05C

Z-Wave Security Sensors

HomePro Z-Wave ZIR000	Intermatic Z-Wave CA9000

Z-Wave Electrical Outlets

Intermatic Z-wave HAO1C	Intermatic Z-wave CA3500