Sloan Valve EL-1500-L Optima Closet Sensor， Chrome<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Features: Self-adaptive Sensor</li><li>Flashing red light indicator</li><li>Replaceable sensor window</li><li>Two-wire connection system</li><li>When sensor no longer detects User， Solenoid Valve activated after 3 second delay</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31lOSswWrwL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/21jtEFDR3HL.jpg" noproxy>