1)Pre-sales technical selection guidance and installation services
While our products come with both paper and electronic installation and operation manuals, we also provide detailed photos and videos for easier understanding. For customized products, we provide a technical specification sheet tailored to your needs for confirmation.

2) User Training
Before receiving the product, our installation engineers will be trained in detail, providing guidance on the installation manual. Remote training via video and photos will also be conducted, providing detailed explanations of parameter settings and functions.

3) Warranty Service​
During the warranty period, the replacement of specific defective parts is free of charge under normal operation. However, ​if a malfunction or defect is caused by user improper operation, an additional fee may apply.​

4) Online Support
Given the physical distance between us, ​we always recommend customers utilize our online support services. You may ​call, write, or message us​ to report issues encountered. ​Visual documentation​ (videos and photos) ​of malfunctions or defects is crucial​ for us to accurately diagnose and resolve problems promptly.

​5) Returns/Replacements​
Our products are ​not fast-moving consumer goods (FMCG)​​ and are typically ​bulky and heavy. ​Due to considerations including shipping costs, customs clearance processes, and potential import duties/taxes, we do not accept full-unit returns.​​ However, we ​can replace specific defective components.​

6) Upgrade Services​
Our products are ​custom-built to formal order specifications​ and ​cannot be upgraded locally once confirmed and assembled. However, we may ​ship upgrade parts to users for partial modifications​ where user requirements allow – such as ​adding communication modules​ or ​replacing touchscreens.