The products of DORJI are mainly based on the RFICs from the famous semiconductor companies such Semtech, Silicon labs, TI, ADI,etc. and are fully tested before shipment. DORJI provides six-month long guarantee for each product. When users get the product in hand, they should check the datasheet carefully before testing in case the products are damaged by overvoltage or reverse polarity.
If customers find any product broken or defective before use, they can contact the suppliers whom they procure the products from for direct replacement. Or they can contact DORJI for technical check before further action.