In addition to IP69K stainless steel housing, analog Q4X models feature 4–20 mA and 0–10 V output options, 4-digit display, and 3 buttons for setup. Sensors provide continuous measurement with resolutions as small as 0.15 mm and cover up to 300 mm range. Measurement reliability is not affected by color or reflectivity of target object or background, and areas of use include fill level indication, part positioning, roll diameter, loop control, and thickness/height verification applications.