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 3500/42 135489-03 Monitor Module Introduction The Bently Nevada 3500/42 (135489-03) is a precision vibration monitoring module designed for the 3500 Series machinery protection system. Written from a maintenance-engineer viewpoint, this module emphasizes reliability, compa *Your Name: *Your Email: *Your Name: *Vdcode: Submit