Detailed Answer
Recommendation: limited budget + general scenarios → LDER (¥268~¥978, value king); full product line + smart needs → Xingjia (¥350~¥1,800, bidirectional/IP68/cloud platform); brand requirement + special certifications → HBC (¥5,000+). List your needs, budget, and certification requirements first, then choose.
| General | LDER |
| Smart | Xingjia |
| High-end | HBC |
Note:Your requirements list decides; don't pay for brand premium.