There are various synonyms for the term "juice level indicator" that are commonly used. One is "juice gauge," which refers to a device that measures the amount of juice in a container. Another is "juice meter," which is a device that checks the juice level in a container and provides an accurate reading. Other synonyms include juice sensor, juice probe, juice level sensor, and juice level probe. All of these terms refer to a tool that can help you determine the amount of juice you have in a container, making it easier to know when you need to add more juice or refill your container.