990-05-70-02-05 4-20mA Vibration Transmitter with ATEX for Hazardous Areas The Bently Nevada 990-05-70-02-05 is a two-wire, loop-powered vibration transmitter designed for continuous shaft vibration monitoring. It combines the Proximitor® sensor and transmitter in one compact housing and is intended for use with the 3300 NSv Proximity Transducer System. This version features a 0-5 mils full-scale range and a 7.0 m system length, making it suitable for small pumps, compressors