Sell Pressure Gauge WIKA Indicator Accuracy 0.25% Models: *) Models 332.50, 333.50 Test gauge, stainless steel Standard version, class 0.6, NS 160 [6"] *) Model 312.20 Test gauge, copper alloy With Bourdon tube, class 0.6, NS 160 *) Models 332.30, 333.30 Test gauge, stainless steel Safety version, class 0.6, NS 160 [6"]