We have developed a wide range of leak detectors for the early detection of leaks. This range includes devices for application in double-walled tanks, single-walled tanks with anti-leak protective liners, double-bottomed flat-bottom tanks and double-walled pipelines. Our devices enable the monitoring of liquids hazardous to water and combustible liquids with a flashpoint =< 55 °C and temperature classes T1 to T6.