Fluke Corporation has a web page to help assist in determining if your Fluke 373, 374, 375 or 376 needs to be returned. There are also detailed instructions on what to do if your clamp-on DOES need to be returned. If you have purchased a meter between September 1st, 2010 and October 8th, 2012, check out the Fluke Model 37X Recall Page TODAY!