Noncontact Ultrasonic Level Sensor For Media Type Corrosive Liquid Sticky/Dirty Liquid Antenna Diameter 1 3/8 in Range 117.6 in Connection Size 1 in Connection Type NPT Accuracy 0.25 in Voltage - Maximum 250V DC Dead Band 4 in Operating Frequency 100 kHz Spatial Resolution 0.25 in Beam Width 2 in Operating Pressure - Maximum 30 psi Media Temperature - Minimum -7 Degrees F Media Temperature - Maximum 140 Degrees F Output Wire Configuration 4-Wire Output Voltage Range 4 to 20mA