... %)ASME B40.1 Grade A (2-1-2%)OPTIONS&ACCESSORIES:Custom dial, metric scale, DIN 2.5%,1% accuracy, recalibrators,restrictors ... , special connections and more. are high quality dry gauges design to provide reliableservice on applications not corrosive to the ... %)ASME B40.1 Grade A (2-1-2%)OPTIONS&ACCESSORIES:Custom dial, metric scale, DIN 2.5%,1% accuracy, recalibrators, ...