Tension Controls US-2 Ultrasonic Sensor for use with Versatec Specifications Range 152 mm to 1,524 mm (6 inches to 60 inches) Resolution .025% of span, or 0.18 mm (0.007 inch) whichever is larger Enclosure IP65 Notes: Measurements in parenthesis are metric. Face of roll cannot be closer than 152.4 mm (6 inches) or further than 1.524 m (60 inches) away from the face of sensor. Model US-2 Model US-2 with RAA Right Angle Adapter 26 Tension Controls