The GEKA ER18 level indicator is a robust and reliable sight glass designed for clear fluid level monitoring in various industrial and agricultural applications. It features a durable polyamide (PA) housing and a natural glass sight, ensuring excellent visibility and resistance to a wide range of liquids including oil, water, and air. This model is engineered to operate effectively within a temperature range of -30°C to +100°C and can withstand pressures up to 10 bar. The indicator includes a distinctive red marking, enhancing the visibility of fluid levels. Commonly equipped with a G 1/2" connection thread, it is sealed with an NBR gasket for secure and leak-free operation.