Smart Turbidity Sensor - Self-Clean Dual IR Beam2.jpg_1
ULTRA Series Digital Smart Suspended Solids Sensor - Dual IR Beam - Auto Clean ULTRA Series Digital Smart Suspended Solids Sensor - Dual IR Beam - Auto Clean
ULTRA Series Digital Smart Suspended Solids Sensor - Dual IR Beam - Auto Clean

ULTRA Series Digital Smart Suspended Solids Sensor - Dual IR Beam - Auto Clean


The ULTRA Series Digital Smart Suspended Solids (Sludge Concentration) 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
  • TSS range: 0.1~50000 mg/L*
  • High stability, high precision, and excellent repeatability (±2%)
  • Communication: MODBUS RTU (RS-485) and 4 to 20mA output

Few sensors can boast the versatility, low maintenance and industrial-strength that the TT-SS-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-SS-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 ULTRA Series Digital Smart Suspended Solids Sensor - Dual IR Beam - Auto Clean
Code TT-SS-DSS-7833D-SC
Measurement range SS: 2-50,000 mg/L
Measurement accuracy < ±5% of measured value
Repeatability ±2%
Pressure range ≤0.4Mpa
Flow rate ≤2.5m/s, 8.2ft/s
Main material Body SUS316L/Titanium alloy (marine) /PVC Cover: POM, Cable: PUR
Output communication  MODBUS RS485
Measuring temperature 0-45°C (do 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.





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