Product Description Detailed Specs Downloads Reviews/Questions Product Description Mark II - RFID UHF Upgrade Option, (L5) Detailed Specs MFG Part Number OPT78-2754-05 Product Type Accessory null null null null null null null null null null Downloads Warranties Warranties Reviews/Questions The Honeywell OPT78-2754-05 is also known as HON -OPT78275405 or OPT78275405