Abbytek Enterprises, LLC provides out of warranty repairs and replacements for Allegheny Instruments Inc. (Formerly Marks Products, Inc.) GeoVISION systems. Please refer all in warranty requests directly to Allegheny Instruments, Inc.,www.alleghenyinstruments.comwww.geovision.org, www.borehole.us, www.boreholecamera.org, www.marksproducts.com