This Schneider Electric OsiSense electronic pressure switch has a 4 digit 7-segment display, hysteresis switching mode. It has a pressure rating of -1 bar. It has a supply voltage of 24Vdc and 2 x solid state outputs (pnp). 0High accuracy for more stable control on your critical processes. Simple reading of current value and threshold with clear LED display. 10 million cycles mechanical durability for minimum required maintenance on your pressurized fluid circuits. NQ442L2 PNLBD INT NQ 225A MLO 42 CKT 3P AL