Extension probe attaches to Amprobe TIC 300 Pro AC voltage detector to test for high AC voltages without touching or disconnecting the circuit * Can detect AC voltages between 1,500V and 122,000V * For utility, industrial, and mining applications when working with high-voltage equipment such as transmission lines, downed power lines, fuses, and load-break connectors * 48" long * Conforms to applicable European Conformity (CE) directives and N10140 Australian standards