The MX0531 socket tester with earthing and 30 mA RCD test from Chauvin Anrnoux can be operated with just one hand thanks to its small size and can be carried comfortably on the wrist with a carrying strap. The connection head is rotatable and can therefore be easily inserted into any 2P+T socket outlet to be tested. The measured values remain displayed for 10 seconds even after the device has been unplugged.
The socket tester checks the proper functioning of the socket outlet in a TT system, measures the voltage and displays the position of the phase conductor, automatically measures the earth resistance RE via the earthing contact and checks the tripping of the 30 mA RCD.