INSIZE Depth Gage 6" Range to USB Direct Package INSIZE's Caliper-style Depth Gage includes 2 hooks so you can measure the depth of a step or blind-step. USB Direct Cable Included Microsoft Windows will recognize the USB Direct Cable as a keyboard, so when you press Data Send, the incoming data will be placed into ANY Windows-based software just like you were typing it on a keyboard. You can also use an optional Footswitch to trigger a Data Send. Depth Gage Specifications include... 0-12" / 300mm Measuring Range 0.0005" / 0.01mm Resolution 4" Wide Base Hardened Stainless Steel Construction Depth Gage Functions include... Zero-set, Power on/off, inch / metric conversion