This Baker LF45 series pressure gauge has stainless steel 316 wetted parts, a 4.5" (115 mm) circular dial filled with silicone fluid and enclosed in a phenolic case, a lower mount male connection, and measures pressure with a single or dual scale with an accuracy of + /- 0.5%. The stainless steel 316 wetted parts provide corrosion resistance. The black, impact-resistant, solid front phenolic case has an integral back flange, a safety blowout back, and shatterproof glass lens for durability and operator safety. The stamped aluminum dial has black and red markings and a micrometer-adjustable pointer. The gauge is accurate to +/- 0.5% over the entire range, American Society of Mechanical Engineers (ASME) B40.100 Grade 2A accuracy class. The operating temperature for the gauge is -50 to 170 degrees F (-45 to 77 degrees C). This pressure gauge is suitable for applications where pulsation, vibration, and shock are present. Please note you may receive a "REED" branded product. This is the exact same pressure gauge as shown in this listing. This product includes a calibration certficate traceable to NIST (National Institute of Standards and Technology).