Detailed Answer
Dual-channel: control + monitoring separation — control link (433/470MHz dedicated frequency, low latency, high reliability) + monitoring channel (4G/NB-IoT/WiFi, status upload). Value: control safety (dedicated band prevents interference) + complete data (monitoring does not consume control bandwidth). LDER/XINGJIA high-end solutions use dual-channel. Pay attention to dual-channel architecture when selecting smart models.
| Control | Dedicated frequency |
| Monitoring | 4G/NB-IoT |
| Value | Safety + data |
Note:Dual-channel architecture is the mainstream for smart remote controls.