Extech HD700 Differential Pressure Manometer - 2PSI<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>USB port includes PC software</li><li>Large LCD display with backlighting</li><li>11 selectable units of measure</li><li>Max/min recording and relative time stamp</li><li>Data hold， auto power off and zero function</li></ul></div><img src="http://ecx.images-amazon.com/images/I/416lfupgYmL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41jxqJc8IcL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41%2B6bJhFVyL.jpg" noproxy>