Reflective Ultrasonic Level Sensor For Media Type Chemicals Oil Wastewater Water Antenna Diameter 2 3/8 in Range 58.8 in Connection Size 2 in Connection Type NPT Accuracy 3 mm Voltage - Maximum 28V DC Dead Band 1.5 in Operating Frequency 80 kHz Spatial Resolution 0.019 in Beam Width 2 in Operating Pressure - Maximum 30 psi Media Temperature - Minimum -40 Degrees F Media Temperature - Maximum 176 Degrees F Output Wire Configuration 2-Wire Output Voltage Range 4 to 20mA