FLIR 19252-100 Infrared Inspection Window， 4 in.<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"> Enables successful thermographic inspection of high-voltage/current electrical environments </span></li><li><span class="a-list-item"> Minimizes inspection time/cost and reduces the chance of injuries compared to other inspection methods </span></li><li><span class="a-list-item"> Broadband calcium fluoride (Caf2) crystal - suitable for visual， thermal and fusion inspections </span></li><li><span class="a-list-item"> Rugged anodized aluminum frame with permanent hinged cover - no loose parts </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/5176yE2GNyL.jpg" noproxy>