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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This is honestly absolutely brilliant! the only downside is that it doesnt come with a manual but to be fair i copy and pasted it off of this website and saved it on my phone for future reference. they supplied a couple extra sensors and buzzers in case you break 1 or have a differwnt preference on which type of sensor youd like to use. all round great device.
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.
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