Extech 380801-NIST Power Analyzer with Nist<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> True RMS Voltage &amp; Current measurements of sine， square， triangular and distorted wave forms with a crest factor &lt;d.; 5 </span></li><li><span class="a-list-item"> Plug device to be tested directly into the Power Analyzer </span></li><li><span class="a-list-item"> Max， Data Hold and Overload Protection </span></li><li><span class="a-list-item"> Battery or AC adaptor provides line isolation </span></li><li><span class="a-list-item"> Sampling (update) rate is 2.5 times/second </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51fkdguTx4L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/5188PYl7WeL.jpg" noproxy>