AstraGuard uses advanced CCD array, fibre optic coupled spectroscopy to continuously monitor organic levels in the treatment of drinking, process and waste water. The UV absorbance of water at 254nm is a reliable indicator of its aromatic organic carbon content; many studies have proven a correlation with the traditional laboratory tests like TOC, BOD, COD and DOC. The ease of implementing UV254 as a continuous monitoring system makes this the method of choice where a fast response is required to protect supplies and valuable plant and equipment.