The Rachio Wireless Flow Meter is a unique motion detector that is designed to monitor water flow in your irrigation system. It uses advanced technology to accurately detect motion and can be easily installed in your outdoor water supply line. The flow meter can measure water flow rates and send real-time data to your smartphone or smart home controller. It can also detect leaks or abnormal flow patterns, helping you conserve water and prevent damage to your irrigation system. The Rachio Wireless Flow Meter is battery-powered and can last up to 5 years on a single charge, making it a low-maintenance option for long-term use. With its innovative features and reliable performance, this motion detector is a top choice for homeowners looking to optimize their irrigation system.