Photometers for testing drinking, process and waste water

Microprocessor controlled photometer water quality testing kits designed to provide rapid, reliable and precise measurements of the most important water treatment parameters.

Applications:  Water Treatment, Waste Water, Cooling/Boiler Water and Swimming Pools.


PCcompact 4 in 1 Photometer


Microprocessor-controlled water quality testing photometer for testing Chlorine, pH, Cyanuric Acid and Total Alkalinity

Wallace & Tiernan P15 Plus Photometer


Microprocessor-controlled water quality testing photometer for testing Chlorine, pH, Total Alkalinity, ozone, chlorine dioxide, Bromine and Cyanuric Acid

MD100 Photometer


The MD 100 uses high quality interference filters with long-life LEDs as a light source without any moving parts in a transparency sample chamber. The units supply accurate, reproducible results very quickly. Other major advantages include ease of operation, ergonomic design, compact dimensions and safe handling.

MaxiDirect Photometer


The MaxiDirect Photometer combines the mobility of a portable water quality tester with the characteristics of a modern laboratory photometer

MultiDirect Photometer


The MultiDirect is a microprocessor-controlled photometer with ergonomically designed keypad and large-format graphic display. It is equipped with a wide range of pre-programmed methods and allows for the user to store their own


The Principle of Photometry

When specific reagents are added, the water sample takes on a degree of coloration that is proportional to the concentration of the parameter being measured. The photometer measures this coloration. 

When a light beam passes through the coloured sample, energy with a specific wavelength is absorbed by the test substance.  The photometer determines the coloration of the sample by measuring the transmission or absorption of light of this wavelength (in other words, monochromatic light).  The photometer then uses a microprocessor to calculate the required concentration and displays the result.

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