52266.154.BL1 Ajax WaterStop 1" (DN 25) Jeweller Black is a wireless motorized valve for automatic water shut-off, ideal for protecting homes, offices, and shops from leaks and flooding. Made of brass with a 1-inch connection, it cuts off the water flow in just 5 seconds and supports pressures of up to 10 bar. It features Jeweller two-way radio communication at 868 MHz with a range of up to 1,100 m, remote control via the Ajax system, and Tamper protection. Powered by 4 pre-installed CR123A batteries, it ensures easy installation and smart water system management. Ajax