The Fluke ST240+ RCD Socket Tester with Beeper checks that each wire in the outlet is properly connected to the building's electrical system. Via the bright LEDs and included chart, you can quickly and easily verify the wiring of an outlet. Able to identify several common wiring errors, including reversed live and neutral wires and an earth fault, the ST240+ will give you confidence on your next job.Audible alert helps you work faster, saferThe ST240+ also gives you a unique audible alert anytime voltage is detected. Save time when trying to identify which circuit breaker is connect to which outlet. Just plug the socket tester in, walk to the circuit breaker panel, and listen for the beeper to turn off – or on – as you flip the breakers. Once it does, you’ve found the correct breaker. Time – and trips – saved.When switched on, the integrated beeper can also alert you to hazardous voltage at the outlet, even if the wiring is incorrect. Working in an office, hospital or other location where you don’t want to interrupt others? No problem – the beeper can be switched off.One-button RCD testsThe included RCD test button on the ST240+ Socket Tester with Beeper allows you to also test the operation of RCD outlets. With a single push, the ST240+ can verify the operation of your RCD equipped outlet. If the RCD trips as expected, perfect, you can move on. If not, it’s time to take a closer look.Fast visual identification of all 6 wiring conditionsThe ST240+ has three bright, easy-to-see LED indictors. This lets you see, at a glance, one of six wiring scenarios:Correct installationEarth faultNeutral faultLive faultLive/neutral reversedLive/earth reversed
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