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SIGMA is a US manufacturer that specializes in AV Flowmeters, Samplers, and Rain 
Gauge instrument. In 1997, Sigma became part of the Hach Company family.

MARSH-MCBIRNEY is a US manufacturer that specializes in Open Channel Flowmeters. For over 35 years, Marsh- McBirney has provided innovative and award winning open channel flowmeters designed for both portable (short-term) and permanent (long-term) flow monitoring applications. In 2006, Marsh- McBirney became part of the Hach Company family.




Level Sensor

Sigma Bubbler


Level Sensor



Details

The Sigma Bubbler Level Sensor is as straightforward as it gets, using a simple tube and a bubbler pressure transducer in the meter to measure flow level in extremely difficult flow sites and in the harshest of environments.


Additional Features:
Excellent in:

  • Areas with persistent foam and reverse flow
  • Dry channels
  • Large sites
  • Sites with large, frequent or rapid liquid temperature changes

Specifications

Parameters

 
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