Wireless water leak system from the Aqualifier (O. Berge AS), which automatically closes the water supply in case of leakage. The system is technically approved (TG 20725, SINTEF Certification) and easy to install and use. - Brand: Aqualarm by O. Berge AS - Model: 3/4" Wireless+ - Article number: B3011820 - Number: 2 - Contents per set: Actuator valve, main unit, 2 pieces sensor cable m/lim 3M, sensor, battery CR2450HR, 2 piece sensor plug, DC 12V power adaptor, user manual