Retroreflector, 3.30" (84 mm) Diameter w/Mounting Hole, Package of 2

The SM series provides high performance and ease of use in an economical, compact package. A sensor can have the greatest performance in the world, but if it is slightly misaligned or the target is positioned at the wrong range, you will have reliability problems sooner or later. TargetLock not only simplifies sensor setup but visually confirms your sensor is positioned to operate with the highest possible reliability. In addition, TargetLock provides diagnostic information during use to inform you of impending problems before they result in equipment downtime.