... :IP64 3)Precision:1.6,2.5 Specifications Model:pressure gauge stainless steel shell (copper fittings, copper movement) Dial diameter: 60mm Connector ... : Radial Accuracy: 2.5 Material: stainless steel case, brass movement, brass fittings Color: stainless steel body color, metallic joints Use of environmental ... ± 5 C, the less than 0.4% / 10 C Stainless Steel Pressure Meter