1. l鋍kageindikatorL鋍kageindikator for a real estate' s bruksvattenr鰎systembruksvattenr鰎system, that has a cap (3), a reader (5) in order to observe one water measuring travel (1) fl鰀esindikatorfl鰀esindikator (2), one styrenhetstyrenhet (4) in order to establish a leakage situation and an alarm (7) in order to indicate a water leakage, characterized of that the leakage indicator additional covers f鋝tningsorganf鋝tningsorgan (9) in order to l鰏tagbartl鰏tagbart affixed wide water measuring verge (1). To that skyddskravenskyddskraven 2-112-11.