Turbidity Sensors / ClariVUE10
ClariVUE10 ISO 7027 Compliant, Side-Scatter Turbidity Sensor
Side-Scatter Measurements with ISO 7027 Compliance
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The ClariVue™10 is an ISO 7027 compliant, submersible, side-scatter turbidity sensor. It outputs an SDI-12, digitally processed signal that all modern Campbell Scientific data loggers can measure. The side-scatter turbidity measurement can be used as a surrogate for suspended sediment concentration in aquatic ecosystems.

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Benefits and Features

  • Measures suspended solids and turbidity for up to 4000 FNUs
  • Provides a compact, low-power probe that is field proven
  • Compatible with modern Campbell Scientific data loggers
  • Accurate and rugged


Technical Description

The ClariVue 10 is an ISO 7027 compliant, side-scatter turbidity sensor. It returns data via SDI-12 to a data logger. Turbidity is a common surrogate measurement for suspended sediment concentration in aquatic systems. The ClariVue 10 is designed to operate in fresh and saline environments. It will require regular maintenance to keep the optical window clean in high bio-fouling environments. The face of the sensor is made from copper to slow biological growth over the optical windows.


Standards Meets ISO 7027-1:2016 (side scatter) standard for turbidity measurements.
Compliance SDI-12 v1.4 compliant
Operating Temperature Range -2° to +40°C
Measurement Range 0 to 4000 FNU
Resolution 0.2 FNU
Accuracy ±2% or 0.5 FNU (whichever is greater)
Power Requirements 9.6 to 18 Vdc
Measurement Time 9 s (with an M! instruction)
Housing Material Delrin® plastic
Head Material Marine-grade bronze
Optics Sapphire lens
Connector Descriptions Marine-grade bronze, gold-plated pins
Connector Description Bronze 3-pin wet-mate
Cable Type 3-conductor, polyurethane jacket with water block
Optical Assembly Sealed with double O-rings
Temperature Accuracy ±0.2°C
Maximum Submersion Depth 30.48 m (100 ft) for the plastic
Diameter 30.1 mm (1.185 in.)
Length 166 mm (6.54 in.)
Weight 158.76 g (0.35 lb)

Power Consumption

Quiescent < 300 µA
Measurement < 35 mA


Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.


Product Compatible Note
CR800 (retired)
CR850 (retired)


ClariVue 10 Program Example (1 KB) 11-08-2021

This example CR1000X program uses the M1! SDI-12 command to retrieve 100 burst measurements from a ClariVue 5 or ClariVue 10. The sensor makes 100 measurements to calculate turbidity statistics (median, mean, standard deviation, minimum, maximum) and mean temperature.

FAQs for

Number of FAQs related to ClariVUE10: 2

  1. The most significant difference between backscatter and side-scatter measurements is the sample volume. A backscatter sensor has a much larger sample volume that helps measure higher turbidity values. The smaller sample volume of side-scatter sensors works better at lower turbidities.

  2. It used to be that NTUs were the unit for all turbidity sensors. In 2007, an ASTM committee formed and established different units for each category of turbidity sensor technology, and there are many. Backscatter sensors such as the OBS-3+ and the OBS501 have units of FBU (Formazin Backscatter Units), whereas ISO 7027 side-scatter sensors have units of FNU (Formazin Nephelometric Units). The side-scatter OBS501 and the ClariVue™ sensors are part of this category. While sensors of different technical designs can be calibrated and measure Formazin the same, they will not make the same measurement in natural waters where size, shape, color, reflectivity, etc., of the particles vary. The ClariVue™ sensor measurements will not match the OBS-3+ measurements in natural waters.

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