Bently Nevada 9200-09-01-01-00 Two-Wire Velocity Seismoprobe By wayne No Comments on Bently Nevada 9200-09-01-01-00 Two-Wire Velocity Seismoprobe 3 Min Read Original Bently Nevada 9200-09-01-01-00 two-wire velocity seismoprobe transducer. Sensitivity 20 mV/mm/s, 15 Hz min frequency, 1/4-20 UNC base. Shop now.