Ultrasonic Sensor Model No. -Ub2000-F42-E6-V15, Single Head System Operating V Oltage Ub=10-30Vdc Operating Current Ie =400Ma, Protection-Short Circuited , Over Load /Ip 54,Part No. 133988 Make-Papperl + Fuchs , Germany [ Warranty Period: 30 Months After The Date Of Delivery ] ]