The Series ULL Ultrasonic Level Transmitter for Liquids is a direct-install level transmitter designed for non-contact measurement of solid levels. The ULL utilizes ultrasonic technology paired with automatic temperature compensation to provide reliable and accurate measurements in virtually all conditions. An integrated LCD screen and four responsive push buttons allow for quick and easy programming on a simple menu structure. Diagnostic capabilities and a failsafe output signal make the ULL an essential choice in critical applications.