There are a lot of differences between a cheap $40 transmitter and a robust $400 unit. It all boils down to accuracy and reliability and the necessary manufacturing processes to go along with them.
Ultrasonic level sensors are incredibly versatile instruments, however, no matter how they are configured, there's one thing they can't do.
Remote tank level sensors can dramatically improve your tank management, or the tank management of your customers, when properly understood and deployed. Here are fives ways to save money with remote tank level monitoring.