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Eliminating the need for multiple sensors to accommodate large variation in turbidity, Tu•Xchange™ automatically adjusts to the appropriate range while in operation. As a result, high accuracy is achieved over the entire 0-3000 NTU range.

For long-term deployments in sediment rich areas, a wiper option is now available. Tu•Xchange™ has proven to perform well long term when protected from marine growth by UV biofouling control.

Tu•Xchange™ accuracy is quoted as a percentage of reading. A sensor measuring 900 NTU is accurate to +/-18 NTU, while measuring 500 NTU it is accurate to +/- 10 NTU, based on its +/- 2% specification. As the measurement nears 0 NTU the accuracy specification also includes a floor. For example, the same sensor measuring at or below 1 NTU would have an error of +/- 0.2 NTU.


Technical Specifications

  • Parameter: Turbidity
  • Depth Rating: 200 m 300 m
  • Range: 0-3000 NTU ᵈ
  • Response Time: < 0.7 s
  • Accuracy: (+/-) 2% of reading or 0.2 NTU
  • Precision: (+/-) 0.5 % reading or 0.1 NTU
  • Wiper: 200 m: yes 300 m: no
  • Length: 200 m: 143 mm (5.61″) 300 m: 133 mm (5.25″)
  • Diameter: 29 mm (1.13″)
  • Resoltution: 0.01 NTU

Data Sheet

ᵃ Standard range
ᵇ Will over-range to 100 mS/cm. Inquire for specifications.
ᶜ Will over-range to 60 ⁰C. Inquire for specifications.
ᵈ Digital auto-ranging
ᵉ When deployed with UV•Xchange™
ᶠ For standard range only. 0.02 m/s for other ranges.
ᵍ For standard range only. 0.5-1.0 m/s for other ranges.
ʰ At 1 m/s flow