Note: if you already have a meross hub msh400 msh450, you can directly purchase the non-hub version mst100. The msh400 supports 24 meross devices, while the msh450 supports 32. Please note that when connecting this valve to the msh400 hub, apple homekit only supports voice and remote control if connected to the msh450 hub, it is not compatible with apple homekit. Easy to use: works with any outdoor faucet. Control via the meross app, buttons, or voice works with alexa, siri, and google . And compatible with smartthings. Solid construction: corrosion-resistant brass inlet and outlet ensure long-lasting performance and leak prevention. Ip65 is water-resistant, standing up to harsh outdoor conditions. Powered by 4 x 1.5V alkaline batteries not included for up to one year of use. Overwater protection: features auto shut-off after 15 minutes adjustable in the app to prevent waste and flooding if you forget to turn off the water. Additionally, the device automatically closes the water flow when batteries are depleted, ensuring safety even during power loss. Flexible watering plans: create various customized watering schedules easily on the meross app. Plans execute reliably even when the timer is offline, ensuring your plants are always cared for. Smart weather skip: uses hyper-local weather data to automatically skip watering before, during, and after rain, or in freezing or windy conditions through meross app. Protects your plants and prevents yard flooding. Water usage track...