The Bently Nevada 330400 / 330425 Accelerometers are designed for critical machinery applications that require casing acceleration measurements, such as gear mesh monitoring. The 330400 meets the requirements of American Petroleum Institute (API) Standard 670, offering a 50 g peak amplitude range with a sensitivity of 100 mV/g. The 330425 model is similar in design but provides a higher amplitude range of 75 g peak and a sensitivity of 25 mV/g.