Vacuum cleaner accessories: The left and right cliff sensors can accurately identify the edge of the ground to avoid damage caused by the vacuum cleaner. Sweeper Sensor: When approaching an obstacle, the sensor automatically adjusts the direction of the vacuum cleaner to ensure smooth cleaning. Obstacle Shadow: Depending on the ground conditions, the sensor can automatically switch between cleaning modes, such as hard floor mode, carpet mode, etc. Collision protection: When approaching furniture or other obstacles, the sensor automatically slows down to avoid damage caused by a collision. Robot vacuum cleaner parts cliff sensorfor S8 S8+ S8 Pro Ultrapacking including: as optionsLeft cliff:Right cliff:Welcome to my store, we are a professional shop to do vacuum cleaner accessories, all kinds of vacuum cleaner parts, accessories, hope you can find the products you want here, your satisfaction is my motivation, thank you!!