1.You can contact the customer service. for any question regarding the product.
2.Ask the question in English to get answer faster.
3.Keep your question short and to the point.
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A very good product for remote on/off control of a device (a heater in my case) and measurement of the electricity consumption. Well constructed and of good quality/price ratio
no surprise
Tips:For questions about your order, place of delivery, product discount, taxation, delivery time, warranty, shipping, payment, exchange rate, and other questions unrelated to the product, please contact customer service.
A part of the QA has been auto-translated.