NuTone C909 Tri-Volt Transformer for Door Chime<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>8-volt， 20VA or 16-volt， 20VA transformer for use with multiple door chimes in one home; order in standard package of six to help assist with your planning and still retain that economical edge</li><li>Quick install transformers， built to last so you should have fewer call backs</li><li>One 8 or 16-volt， 20VA transformer needed for a single chime; multiple transformers needed for two chimes</li><li>cULus Listed for safety， ensuring you have a quality， reliable transformer that will pass inspection</li></ul></div><img src="http://ecx.images-amazon.com/images/I/6103VqQKMBL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41ZKrHPrJJL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41xDYGUagoL.jpg" noproxy>