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 138700-01 Seismic Monitoring Module Introduction The Bently Nevada 3500/42M (Part No. 138700-01) is a dedicated proximity and seismic monitoring module designed for applications where machine integrity and operational continuity are essential. Built for integration within the *Your Name: *Your Email: *Your Name: *Vdcode: Submit