The MACE EchoFlo features patented Digital Signal Processor (DSP) technology that allows level measurement in a limited space. With a minimal 2″ (50mm) dead band and 2" beam-width, the EchoFlo can be deployed in a diverse range of applications where other sensors wouldn't read (such as in a drainage tile).
 
Applications:
Wastewater flow measurement through flumes or pipes with flumes or weirs attached
Level measurement in small tanks and sumps
Depth measurement in pipes
Depth measurement in bins or silo's
Programming is easy and settings can be saved for multiple unit depoyment with the free MACE EchoCal software.
Specifications:
Material Type: Polycarbonate and PVDF
Depth Range: 2.5m
Thread Type: 1″ NPT
Output: Frequency