描述：**IW4000, 100mm (4") SMART Infrared IR Window.** A fully featured SMART Infrared IR Window with crystal optic the IW4000 is the most cost effective Infrared IR Window of its type. The HydroGARD? coating – exclusive to CorDEX infrared windows – sales both front and rear faces plus the edges of each crystal optic prior to assembly to ensure total protection against moisture, mild acids and alkalis. Each CorDEX SMART Infrared IR Window comes complete not only with the embedded RFID tag for wireless identification but with two additional identification methods; barcode and human readable. So whether or not you use RFID technology, the SMART Infrared IR Window has you covered. With its 1?4 turn quick release lock and spring loaded cover, the IW Series is simple to use and requires no disassembly during the installation process. The team at CorDEX have years of experience installing SMART Infrared IR Window and we know how much pressure an installer can be under during a shutdown. Drawing on this wealth of experience and by listening to our customers we include a free access key with every SMART Infrared IR Window along with a tear off self-adhesive drilling template that leaves no residue on the panel, the template even has a non-adhesive corner making it simple to grab and remove. During an installation, we know that fixing screws are easily lost costing time and increasing pressure on the installer, so we add an extra one with every IR Window, just in case.