The NBGRQWECZS Cliff Sensor is the perfect solution for any Viomi robot vacuum fan. Made to complement the V2, V2Pro, V3, and SE models, this advanced sensor ensures a worry-free cleaning experience. Its compatibility ensures that users can quickly and conveniently replace any worn-out parts without the need for extensive research or parts numbers. The Cliff Sensor's design is durable, ensuring long-lasting performance and minimal wear. Additionally, the product incorporates intelligent technology, allowing it to learn and adapt to new environments, ensuring optimal performance and longevity.