Laser Distance Sensor module mainboard: This enhances mapping accuracy, supports precise route planning and reduces missed areas during cleaning. Replacement Accessory: Manufactured to match the original specifications of Xiaomi Mijia 5 Pro OV21GL, ensuring reliable operation, long service life and consistent cleaning performance of your T30 series robot vacuum. Easy Installation: Designed for quick, simple replacement without special tools. Users can easily install this sensor module by following basic disassembly steps for Xiaomi Mijia 5 Pro OV21GL. Restore Optimal Performance: Ideal for replacing a or faulty Laser Distance Sensor module mainboard, helping restore accurate navigation, smooth obstacle avoidance and full-coverage cleaning. Application Scope: for users who experience navigation errors, irregular routes or mapping issues with their Xiaomi Mijia 5 Pro OV21GL robots and need a professional navigation sensor replacement solution. Color: As Shown Material: plastic Package Contents: 1*Laser Distance Sensor Module Mainboard Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.