The MRK110 reed-chain measuring system adds a 4–20 mA output to an IGEMA magnetic level gauge while retaining the AL2-G/AL3-G mechanical indication. Float magnets operate a resistance chain; the resulting signal is proportional to level and can be transmitted to a control station or LB16 remote indicator. M510 switches can provide additional limit contacts.

MRK110-S converts resistance to 4–20 mA. MRK110-SIL adds the listed safety-related functionality and HART communication. MRK110-Ex-SIL is the listed hazardous-area version with HART. The catalogue distinguishes versions below and above 150 °C, with or without isolation. HART-transparent supply isolators, Ex supply isolators and an mA display are available. Confirm the exact temperature, isolation and certification requirements before selection.