Product Consult

　　Before buying our products, you can contact our sales or engineers via hotline, QQ, Email, Skype etc. All your pre-sales questions can be solved with our greatest enthusiasm.

　　Product consultation and purchasing process please contact:

　　Sales Hotline: +86 755-23025312 ext 8001

　　Email：sales@graperain.com

　　Pre-sales technical questions:

　　Technical Hotline: +86 755-23025312 ext technical department

　　Email：supports@graperain.com
　　

　　Technical support

　　Any questions regarding product using, please contact our engineers who are many years of embedded development experience. You can also exchange technical thoughts in our forum where you can get latest software updates and promotion news.

　　Our technical support is mainly development board functions. We will help product running with all the functions. Other technical problems, you can communicate in our forum. We would like to see our users share in software and hardware development.

　　Technical support ways: phone call, Email, Skype, Forum

　　Technical Hotline: +86 755-23025312 ext technical department

　　Email：supports@graperain.com

　　Service Time:

　　Monday to Friday：9：00 ~ 12:00，13：30 ~ 18：00