Ebyte EWD104-BT57(485) Transparent Transmission Modbus Communication Module 2.4GHz BLE5.2 RS485 to BLE Wireless Converter

When will the order be shipped?

We have sufficient goods in stock. We will send out goods within 1 to 2 working days after payment.
We use China Post Air Mail as our regular shipping method. It normally takes 7 to 15 working days to arrive.

If you want to use other delivery services, please leave a note when placing your order.

How can I track my shipment?

After shipment, you will receive an email with the tracking number, such as LZ4177733XXCN. Check logistics status here: https://ebyteiot.com/apps/17TRACK

How to buy samples priced at $0.1?

You can mix different sample types. Each order can buy maximum 2 pieces. Orders over $89 enjoy free shipping.

Where can I download product manuals?

You can download related documents directly on each product page. More materials: https://www.cdebyte.com/Product-Selection

How about product performance?

All EBYTE products support return and exchange within 30 days. Our items work steadily and you do not need to worry about after-sales problems.

What certifications do the products own?

Our goods have passed CE, FCC and RoHS certifications. You can download certification files on product pages directly, fully meeting compliance requirements.

What is the price for bulk purchase?

You can place bulk orders directly online. Large orders of 50, 200, 500, 1000 pieces and above enjoy factory discounted prices. Shipping cost can be checked on the page. Delivery takes 7 to 15 working days.

Why check firmware version before bulk order?

If you buy products in large quantity, please confirm the firmware version of bulk goods is the same as your test sample. This ensures normal operation of your project.
If you cannot confirm the version number, contact online customer service or send emails to ebyteiot@cdebyte.com for confirmation.

Can I apply for an invoice?

Send your request to ebyteiot@cdebyte.com and mark your order number like #3188, we will make the invoice for you quickly.

What if I bought the wrong product model?

1. If your order has not been shipped, email us immediately to change the item or get a refund to place a new order.
2. If your order has already been shipped, please contact us within 30 days to apply for return or refund.
   

What if the package is detained or sent back by customs?

We will refund you immediately after receiving the goods, or arrange redelivery twice.

How to solve other technical problems?

Contact online support staff or send emails to ebyteiot@cdebyte.com. Our professional engineers will help you fix all technical issues.

How to contact us?

Email: ebyteiot@cdebyte.com.

Phone: +86-028-61543675

Fax: 0086-028-64146160