The Winters PEM series pressure gauge with brass wetted parts has a circular dial enclosed in a plastic case and a lower mount male connection with 1/4" NPT rate, and measures pressure with a dual scale (psi/kPa)/(Hg. vacuum/kPa) with an accuracy of + or - 3/2/3%. The brass wetted parts are for measuring non-corrosive liquid and gas pressure. The case is Ingress Protection certified IP52 for protection against dust or liquids. The circular dial is 2" (50 mm) in diameter. The dial has an aluminum black pointer and the lens is polycarbonate for high impact resistance. The gauge measures pressure with a dual scale of either psi/kPa or Hg. vacuum/kPa. The gauge is accurate to + or - 3/2/3% over the entire range of the gauge, American Society of Mechanical Engineers (ASME) B40.100 Grade B accuracy class. The male connection is mounted on the bottom of the gauge and has a 1/4" NPT (National Pipe Thread) rate. The bourdon tube is phosphor bronze, the movement is brass, and the welding is silver alloy. The over-pressure limit is 25% of full scale value. The working pressure is a maximum of 75% of full scale value. The operating temperature is -40 to 150 degrees F (-40 to 65 degrees C). This pressure gauge is suitable for plumbing, heating, air conditioning, pneumatic, hydraulic, water tanks, and air compressors.