User guide

SR300 and SR400 Surface Roughness Tester
Other Starrett Products
RT800
The RT800 is robust enough for the shop floor but
accurate for any inspection area, giving a flexible
solution for all roundness and form measurements.
• Patented gage orientation
• Robust enough for 24/7 operation
• Easy-to-use touchscreen software
RT500
The RT500 has the same robust construction as the
RT800, but with a few less features and is economically
priced.