Smart Turbidity Sensor - Self-Clean Dual IR Beam2.jpg_1
Turbidity Auto Clean Smart Sensor Suspended Solids Auto Clean Smart Sensor
Turbidity Auto Clean Smart Sensor

Turbidity Sensor - Smart Digital, Auto-Clean Dual IR Beam


The Turtle Tough Smart Digital Turbidity Sensor with auto clean technology and dual IR beam is state-of-the-art when it comes to combining smart sensor technology with industry-leading optical measurement




  • Dual IR Beam (90° + 135°) for high measurement accuracy < ±2%
  • Smart Sensor Technology directly integrates with your industrial network or with Turtle Tough Smart Analysers
  • High-quality materials and superior construction for industrial applications.
  • Highly stable near-monochromatic infrared light source avoids the interference of chroma in liquid and external visible light influence
  • Built-in luminosity compensation provides improved measurement accuracy
  • A high-quality quartz lens greatly improves the optical transmittance allowing for superior transmission and absorption of infrared wavelengths
  • NTU range: 0.01 to 100 NTU and 0.01 - 4000 NTU*
  • TSS range: 0 to 50,000 mg/L*
  • High stability, high precision, and excellent repeatability (±2%)
  • Communication: MODBUS RTU (RS-485)

*The measurement range NTU or TSS must be chosen at the time of order. 

Few sensors can boast the versatility, low maintenance, and industrial-strength that the TT-NTU-DSS-7833D-SC turbidity sensor has to offer. The sensor body is made of 316L stainless steel, which is corrosion-resistant and extremely durable. A titanium version is also available for seawater applications or environments with high levels of corrosion.

The IP68 waterproof design can be fully immersed for continuous turbidity measurement in a wide variety of industrial applications including water quality monitoring, municipal water, industrial process water, cooling water, activated carbon filter effluent, and membrane filtration effluent just to name a few.

The TT-NTU-DSS-7833D-SC comes complete with a fully automatic sensor wiper. This self-cleaning function effectively prevents solid particles from building up on the lens, not only reducing the maintenance requirement but greatly improving measurement accuracy over the long term. The self-cleaning function can be set according to the application requirements to provide stable data and reliable performance, while the built-in diagnostic functions greatly simplify the sensor management.

The principle of the Turtle Tough Smart Digital Turbidity sensor is based on the combined infrared absorption and scattered light method. The ISO7027 method can be used to continuously and accurately determine the turbidity value. According to ISO7027 infrared double-scattering light technology is not affected by chromaticity to determine the sludge concentration value.

Product name Turbidity Sensor - Smart Digital, Auto-Clean Dual IR Beam
Code TT-NTU-DSS-7833D-SC
Measurement range  0.01-100 NTU, 0.01-4000 NTU  (The measurement range must be chosen at the time of order)
0 to 50,000 mg/L  (The measurement range must be chosen at the time of order)
Measurement accuracy Less than ±2% of the measured reading or ±0.1NTU, whichever is greater
Repeatability ±2%
Resolution 0.01NTU~0.1NTU, Depend on the measuring range
Pressure range ≤0.4Mpa
Flow rate ≤2.5m/s, 8.2ft/s
Main material Body SUS316L/Titanium alloy (marine) /PVC Cover: POM, Cable: PUR
Power supply DC 12VDC
Communication protocol MODBUS RS485
Measuring temperature 0-45°C (not freeze)
Weight 1.65 Kg
Protective rate IP68/NEMA6P
Cable length Standard:10m, the maximum may be extended to 100m
Application General industrial applications, rivers, lakes, environmental monitoring, water quality, etc.





TurtleTough TT MA RH 

Extreme sensors call for extreme analysers and the Turtle Tough range has been designed with exactly that in mind. Whatever the application, we have a range of Smart analysers and control options to interface with your DSS sensors. Click to view our range...

Interface Hardware

TurtleTough TT MA RH 

We have a range of Smart Dgital Systemaccesories to interface, calibrate, communicate with your DSS sensors. Click to view our range...