The DPIL is suitable for measurement of differential pressures across pumps, boilers, chillers, filters etc. in HVAC applications. The use of thick film resistances fixed on a ceramic chip gives no mechanical ageing or creepage. The sensor is loop-powered giving a 4 to 20 mA signal equivalent to the measuring range. Electrical connection is via a DIN (4350-A) IP65 connector supplied) and pressure connections are screw compression fittings for 6 mm pipe. It is supplied complete with a mounting bracket.