Further information for Pepperl + Fuchs PF ultrasonic sensor 130476 - UB4000-30GM-H3-V1
Detection range: 200 ... 4000 mm, operating voltage: 10 ... 30 V DC, ripple 10 %SS, output type: 1 pulse output for echo propagation time, short-circuit proof open collector pnp with pull down resistor = 22 kO 0-level (no echo): -UB 1-level (echo detected): = (+UB-2 V)