Kewtech KT63PLUS. The Kewtech KT63PLUS 6-in-1 Multifunction Installation Tester provides professional-quality testing for installations. It also has AC, A, ACS, and AS RCD tests, with a range of 10, 30, 100, 300, 500, and 1000mA for type AC RCDs, and 10, 30, 100, and 300mA for type A RCDs.
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