Starrett SR400 Surface Roughness Tester is a portable profilometer with an LCD display for Ra, Rz, Rq, and Rt parameters. It features a 0.75" (19 mm) measurement range and a 0.01 µm resolution. The unit includes a diamond stylus pickup and comes with a protective case.

The Starrett SR400 Surface Roughness Tester is a full-featured, powerful and versatile surface roughness tester. It can be used either freestanding or bench mounted with fixturing for batch measurement and laboratory applications. Display & Traverse unit; Pick-up & Diamond Stylus; Calibration Std; Manual; and Case. 25mm travel, 360um range, 5nm resolution, Advanced Parameter Set (ISO 4287, ISO 13565, ASME, JIS)

Features

• Large screen display
• Unique stylus lift mechanism for total flexibility
• Many application specific parameter options
• Comprehensive selection optional accessories and pickups
• Long traverse length and extended pickup reach
• Stores of upto 100 readings
• Inductive pickup stylus
• 2CR or gaussian filter
• Display and traverse unit, pickup and diamond stylus, calibration standard, manual and carrying case
• 5 mm travel, advanced parameter set
• 32 - 122 deg F storage temperature
• 0 - 80% non-condensing Humidity
• > 20000 measurements battery life
• 4 hr charging time
• 5000 hr standby time
• A rubberized molding and mylar screen enhance durability and grip for unbeatable protection in harsh shop floor environments