SOR's ultrasonic level switch product line features devices that are simple to use and install, and their vibration immunity makes them a good fit for many applications, including seal pots. External tank assemblies known as seal pots are often used as a source of clean, pressurized barrier fluid for double or tandem seal assemblies. Seal pots are pressurized and require instruments such as an ultrasonic level switch to monitor the fluid level. The ultrasonic level switch can be used to activate if the fluid level ever drops too low, indicating a fluid loss problem. The ultrasonic level switch provides cost savings because they do not have to be calibrated. SOR ultrasonic level switches have multiple agency listings, which provide a savings when shipping internationally.