PT54 ; PU5 IFM Pressure Sensors. This range of IFM electronic pressure sensors are suitable for the detection of relative pressure liquids and gases of the fluid group 2 (according to Article 9 of the Pressure Equipment Directive). The sensors are available with different pressure ratings and measuring ranges to suit a number of industrial applications. IP 67 / IP 69K Analogue output 0-10 V analogue Reverse polarity protection Overload Protection Short-circuit proof