The Gestra NRGT 26-1S is a compact, self-monitoring level electrode designed for continuous level monitoring in steam boilers and other pressurized vessels. Operating on the capacitance measurement principle, it provides a reliable and precise 4-20 mA output signal proportional to the water level. This level transmitter is engineered for high-pressure, high-temperature environments, ensuring safe and efficient plant operation. Its robust design, combined with SIL 2/3 certification, makes it an ideal solution for critical applications such as high/low level alarms and water level limiting in accordance with EN 12952-11 and EN 12953-9.