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

GE Z-Wave Lighting Dimmer Switch	Leviton Vizia RF 600W Dimmer	Leviton Vizia RF Plug-In Lamp Module	Wayne-Dalton Plug-In Lamp Module

Z-Wave Security Sensors

HomePro Infrared Sensor ZIR000	Aeon Labs Z-Wave Door/Window Sensor	Homemanageables Z-Wave Door/Window Sensor

Z-Wave Switched Power

GE Z-Wave Receptacle	GE Z-Wave Wireless Control Outdoor Module	Leviton Vizia Z-Wave Receptacle	GE Z-Wave Appliance Module