the feature of ST02 series

Operate voltage: 90- 250V/45 - 65Hz Measure voltage:90 - 250V/45 - 65Hz Accuracy:±(2.0%+2) Altitude:2000m RCD test:30mA RCD working voltage:220V±20V GFCI test:>5mA GFCI working voltage:110V±20V

Maintenance We provide 3 months free maintenance. The buyer should return the product in the original conditions to us. If any part is required to be replaced, the buyer should also pay for the costs of the parts to be replaced. Before returning the items, please confirm the return address and the logistics method with us. After you give the items to the logistic company, please send us the tracking number. As soon as we receive the items, we will repair or exchange them ASAP. Special Demand If you have any special demands, pls leave a message to us in your order. Feedback If you are not satisfied with our products or service, please feel free to contact us, we will try our best to solve your problem! Please do not leave negative feedback without any communication. Thanks for your understanding in advance!