Electronic Depth Gage The Starrett 3753A Electronic Depth Gage is engineered for a high level of accuracy and long service life. Yet they are light and easy to use, with clear, easily-read numbers. This unit measures depths up to 6" (150mm). Features include... 0-6" / 150mm Measuring Range Resolution: 0.0005" / 0.01mm Clear, easy to read Display Stainless Steel Body 3-15/16" Base Hook Attachment No Output