4 Series CX phototherapy units equipped with Daavlin's ClearLink Control System software versions v3.03h and 3.04v. M4 Ser CX 311-20 120-240V 50/60Hz, item # 807QS0020CX6.

Reason: Software issue, resuming an interrupted treatment will result in swap of utilized calibration treatment distance 0" inches to "9. Resulting in over or under dosing.

Code information: UDI-DI: +B2809807QS0020CX60L. Serial Number: QS11571PLNBCX0020

Distribution pattern: Worldwide distribution - US Nationwide distribution in the states of AL, AR, AZ, CA, CO, CT, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, MT, NC, NE, NH, NJ, NY, OH, OK, OR, PA, SD, TN, TX, VA, WA, WI, WV and the countries of Australia, Canada.