Orders are usually delivered within 3-10 working days (the specific time varies depending on the destination and logistics method). Due to factors such as customs clearance and weather, there may be occasional delays. We will continue to follow up and coordinate with the logistics party to ensure delivery as soon as possible.

Please contact customer service as soon as possible and provide the correct address. We will work with the logistics company to try to modify it. If the package has been sent, it is recommended to contact the local express outlet to pick up or re-deliver it. If there are any additional charges, additional shipping costs will be required.

You can check the logistics progress in real time through the [Tracking Link] on the order details page. If the package shows “signed for” but has not been received, please check the collection point or contact the local post office. If you need assistance, please provide the order number and we will verify it for you immediately.

You can contact us via the following channels (multi-channel coverage):

WhatsApp ： +86 13921955971 Email:info@iiotsensor.com

Please contact customer service as soon as possible and provide the correct address. We will work with the logistics company to try to modify it. If the package has been sent, it is recommended to contact the local express outlet to pick it up or re-deliver it. If there are any extra charges, additional shipping fees will be required.

Please enter your address on the order page or contact customer service to confirm availability. Due to trade policies, some products may be restricted.

Yes, all items are packaged to ensure safe transportation. Multiple items will be combined for shipping to reduce environmental burden.