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.
უსაფრთხო გადახდა
A part of the review has been auto-translated.
Small module for alarming when there's no 220 V mains. It works with 3 V and there's a switch to stop it if it takes too long to restore power. You will need the schema in this page to identify component values.
parfait merci
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.