The IEP-UD/C Underground Bushing Probe is designed for direct insertion into exposed 15, 25 or 35 kV load break bushings(after connecting elbows have been removed and properly stored). It can be used with the TAG-200 andTAG-200MR Voltage Detectors, as well as the TAG-500 / TAG-5000 Wireless Phasers. The probe must be inserted directly into the bushing and remain free and clear of all surrounding surfaces. It is rated for use up to 35kV phase-to-phase.