General purpose panel mounted gauge with 2-1/2" dial size white aluminum with black and red markings. Flutterless pointer. Dampened movement. Removable lens. Zero-adjustment. CRN registered. 3 Year warranty. Panels, compressor equipment, water and oil pumps, where rapid pressure fluctuations or system vibration require a stable pointer. Case: steel, painted black. Lens: polycarbonate, threaded. Socket: brass. Connection: 1/4" NPT standard. Bourdon tube: phosphor bronze. Movement: brass (flutterless movement). Pointer: aluminum, black. Welding: silver alloy. Over-pressure limit: 25 percent of full scale value. Working pressure: maximum 75 percent of full scale value. Ambient/process temperature: -40 degree Fahrenheit to 250 degree Fahrenheit. Accuracy: +/- 2-1-2 percent ANSI/ASME Grade A. Enclosure rating: IP52. Pressure range: 0 - 300 psi/kPa.