Wacker Neuson's introduces two new series of high-frequency internal vibrators: IRFU and IRSE-FU. Both come with a patented Bodyguard system that shuts off the unit within 3 milliseconds of a fault current. The new high frequency, motor-in-head vibrators feature an integrated inverter that allows the unit to plug directly into a standard 115V outlet. The IRFU systems offers head diameters from 1.2 t0 2.6 inches while the IRSE-FU models rand from 1.2- to 2.3-in. head diameters.