Displays with +/- 1.0% accuracy. Withstands outdoor environment and rated to IP65. The sensor is suitable for ATEX Zone 0/1 and the meter unit is suitable for the Zone 2 area. The graph is displayed in both liters and percent. High and low level points are displayed. 4-20 milliampere output. Calibrated for cubic, cylindrical and horizontal tanks via the display. Comes with sensor and a 1-inch tank connection with cable clamp.