The Pepperl Fuchs UBE15M-F54-H2-V1 Ultrasonic Sensor offers a 0 ... 15000 mm , emitter - receiver synchronised sensing range, 1 pulse output for echo run time, open collector NPN, short-circuit proof0 level (active): UOL≤ 2 V, IOL≤ 15 mA1 level (inactive): UOH= UB(pull-up R = 330 kOhm) output, and Connector plug M12 x 1 , 4-pin connection. Manufactured by Pepperl Fuchs under the P&F Ultrasonic Sensor category, this model belongs to the through beam sensor.