Ultrasonic Sensor For Media Type Film-Causing Solid/Semi-Solid Liquid Sticky Liquid Antenna Diameter 2 1/8 in Range 19 ft Connection Size 2 in Connection Type NPT Accuracy +/-0.2 Percent Max of Full Range Voltage - Maximum 30V DC Dead Band 10 in Beam Angle 10 Degrees Operating Frequency 55 kHz Spatial Resolution 0.04 in Operating Pressure - Maximum 72.5 psi Media Temperature - Minimum -22 Degrees F Media Temperature - Maximum 158 Degrees F Output Wire Configuration 4-Wire