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 135489-02 Seismic Monitoring Module Introduction The Bently Nevada 3500/42M (Part No. 135489-02) is an advanced proximity and seismic monitoring module designed for high-value rotating machinery. It forms part of the 3500 protection architecture, delivering deterministic sign *Your Name: *Your Email: *Your Name: *Vdcode: Submit