If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. Bently Nevada 3500/42M 135489-01 Seismic Monitor Module Introduction The Bently Nevada 3500/42M (Part No. 135489-01) is a precision monitoring module designed to track shaft displacement and vibration in critical rotating machinery. Integrated within the 3500 series rack, it provides accurate re *Your Name: *Your Email: *Your Name: *Vdcode: Submit