Zooz Z-Wave Plus On Off Wall Switch ZEN21 (White) VER. 2.0， Works with Existing Regular 3-Way Switch<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>FAST Z-WAVE: Manual or remote on/off control from your mobile device or computer (when included to a Z-Wave gateway controller - sold separately).</li><li>DIRECT 3-WAY SOLUTION: no add-on switch needed! Works with regular 3-way switches as long as NEUTRAL is present.</li><li>SMART SKILLS: Reports status instantly. Remembers and restores on/off status after power failure.</li><li>SIMPLY COMPATIBLE: Based on the universal binary switch command class - supported by most Z-Wave controllers. Z-Wave Plus certified &gt; better range and communication speed.</li><li>QUICK INSTALLATION: Just tap the UPPER paddle 3 times while the hub is inclusion mode to add to your network. Follow wiring instructions carefully. NEUTRAL WIRE REQUIRED!</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41he5TNWIdL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41UfDLZHsML.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41OGYhVFABL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41%2BVTm7ARjL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51PrWKMSXjL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ZRKsWki5L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/4154BamtJ7L.jpg" noproxy>