NSF certified smart DN25 brass valve for drinking water systems. Offers precise ultrasonic measurement, water consumption monitoring, automatic opening and closing, and control via the Shelly app via WiFi and Bluetooth. -Drinking water certified brass valve (NSF) -Ultrasonic measuring system? Non-mechanical sensors record flow, pressure and temperature with high precision and without moving parts - real-time monitoring and consumption logging ? Displays flow, water temperature, pressure and total consumption directly in the Shelly Smart Control app -Quick open/close ? For responsive shutdown and water control -Reliable and precise measurement? Temperature accuracy ± 0.5 °C, pressure accuracy ± 1 kPa, flow/volume accuracy ± 0.38 L -Wi-Fi and Bluetooth connectivity ? No hub required -Local web interface? Direct access to the device -Standard DN25 (G1) BSPP parallel thread Common types of use: -Leak and flood protection -Remote property management -Water consumption monitoring -Commercial and multi-tenant buildings -Irrigation control and monitoring