Mitutoyo 178-296 Surface Roughness Gage Detector SJ-210

Product Description

The MITUTOYO 178-296 is a replacement detector accessory designed for use with the SJ-210 Surftest portable surface roughness tester. The detector serves as the sensing probe that contacts the workpiece surface to measure surface texture and roughness parameters. It fits directly into the SJ-210 instrument body and enables accurate stylus-based surface measurement on the shop floor or in the field. Overall length is 61.00 millimeters with an overall diameter of 9.00 millimeters. Metrology technicians, quality control inspectors, and precision machining professionals are the primary users who install and replace this component.

This detector is intended for portable surface roughness measurement applications in manufacturing, machining, and quality assurance environments. It is used wherever the SJ-210 Surftest instrument is deployed, including incoming inspection stations, in-process checks on machined parts, and final surface finish verification. The compact form factor of the detector supports use in tight or difficult-to-reach measurement positions. Replacement of the detector is a routine maintenance task performed when stylus wear affects measurement accuracy or when the detector is physically damaged.

Key Features

• Direct replacement detector accessory for the MITUTOYO SJ-210 Surftest portable surface roughness tester
• Overall length of 61.00 millimeters supports standard probe reach for surface contact measurement
• Overall diameter of 9.00 millimeters for proper fit within the SJ-210 instrument body
• Packaged as a single unit for individual replacement as needed
• Compatible with portable, field-use surface roughness measurement workflows

Compatibility

Designed for use with the MITUTOYO SJ-210 Surftest Portable Surface Roughness Tester.

Installation Notes

Detector replacement on the SJ-210 should be performed by a qualified metrology technician or instrument service professional. Power down the instrument and handle the detector carefully to avoid contact with or damage to the stylus tip before and during installation. Follow the instrument manufacturer's replacement procedure to ensure proper seating and secure attachment. Dropping or side-loading the detector during installation can damage the stylus and compromise measurement accuracy.