The RPS-401A, RPS-426A analog ultrasonic sensor is mounted in a barrel housing and is completely self contained. It is powered by 20 – 30VDC and is reverse polarity protected. RPS-401A in Plastic Housing RPS-426A in Stainless Steel Housing Adjustable Zero & Span Various Sensing Ranges Narrow Sensing Beam LED Strength Indicator Short Circuit Protected Reverse Polarity Protected Analog Current & Voltage Outputs Inverted & Non-Inverted Outputs Self Contained Barrel Housing Input Voltage 20 – 30 VDC Click below to view the datasheets: RPS-401A Datasheet RPS-426A Datasheet Enquire Now