Operating voltage/frequency : 90 ∼ 250V / 45 ∼ 65Hz Phase voltage: 90 ∼ 250V / 45 ∼ 65Hz Leakage voltage: 0 ∼ 99V / 45 ∼ 65Hz Accuracy: ± (2.0% + 2) RCD test:> 30mA RCD working voltage: 220V ± 20V GFCI test:> 5mA (US plug) GFCI working voltage: 110V ± 20V (N.B. RCD and GFCI functions do not coexist)