The HT70 pen voltage detector permits both to quickly verify the presence of AC voltage on any type of electrical installation (sockets, cables, fuses, switchboards, etc.) with and without direct contact and also to perform phase sequence indication and conformity test on generic three phase plants by using red and green fixed and blinking LED indications. HT70 is designed according to IEC/EN61010-1 safety standard in CAT IV 1000V.  Please note, this product has a rounded tip, which will only fit inside 230v European outlets.