Wika 9745963 (Type 232.54) Industrial Grade pressure gauge features 316 stainless steel wetted parts with Lower Back Mount (LBM), 304 stainless steel case and a twist on bayonet front ring. Laminated safety glass window can be removed, allowing access to the adjustable pointer for recalibration. Accuracy +/- 1.0% of span. High media operating temperature up to 212 degrees F and 140 degrees F ambient. These gauges are ideal for process, chemical applications, oil exploration and production, power generation and pollution control equipment.