Rosemount 2120D1AK1I1AA0000 Vibrating Fork Level Switch The Rosemount 2120D1AK1I1AA0000 Vibrating Fork Level Switch is a reliable point-level detection solution designed for industrial liquid handling applications. Utilizing vibrating fork sensing technology, this device provides straightforward identification of liquid presence or absence at defined points within process vessels. Key Features & Benefits Point-level detection for clear liquid presence/absence decisions