RS PRO Non Contact Voltage Indicator, 230V ac to 1000V ac With RS Calibration

RS Pro Volt Stick Non-Contact Voltage Detector

The Non-Contact VoltStick® is a tester for safely checking the presence of an AC voltage without making any disconnections in cables, wall sockets, fuses, circuit breakers, junction boxes etc. No current flow is needed for correct detection. Apply the plastic tip to any connection point or move it along an insulated cable. When an AC voltage is detected a red indicator in the plastic tip illuminates, as it detects the live wire through the insulation. Note that if a 3 phase machine is connected up and one of the fuses blows, the voltage is conducted back to the defective fuse the other way and a faulty indication may be given. Make sure that all machines are disconnected before testing. The VoltStick® cannot be used on socket with shielded cable.