Checker 4G allows the user to configure the sensor as a presence sensor or measurement sensor to inspect and error proof a manufacturing process. Presence sensors verify that features are present. Measurement sensors verify that features are the correct height, width, and/or diameter. In either mode, there is no limit to the number of part features that a single Checker can “check.” With patented part detection technology, Checker sensors are also able to detect and inspect over 6,000 parts per minute in varying positions along the production line. No other sensor, vision sensor, or vision system can overcome imprecise part positioning while delivering consistent, precisely timed pass/fall results.