The ColTech Sensor has been specifically designed to monitor Apparent Color in applications where a broad indication of the color of the water is required. The self cleaning sensor is ideal for monitoring at the intake stage of drinking water processing, allowing automatic coagulant control with no need for a complex analyser.

Organic materials such as Humic Acid or metals like Iron and Manganese dissolved in water will appear as an unacceptable yellow tinge. If discoloured water is allowed to enter the water supply network customers will quickly become aware of the problem.

The sensor requires very little maintenance, with no special tools or training required. Calibration can be carried out against either a wet standard or using a reference standard.