Discover the s::can range

Spectrometer sensors

Intelligent. Optical. OnLine.

The s::can spectro::lyserTM is a fully submersible UV/Vis spectrophotometer which measures light absorbance between 220 and 720 nm.


s::can’s proprietary algorithms analyse and decompose the spectral data to provide measurements for many important parameters including: nitrate, nitrite, COD, BOD, TSS, dissolved H2S and many more. No moving parts and no reagents are used, resulting in extremely low operating costs.


The spectro::lyser™ measures the entire absorption spectrum and is used by many drinking water providers all over the world as a pivotal component in their raw water monitoring.

carbo::lyser™ II / III

The carbo::lyser is ideal for the measurement of the organic carbon load, represented by parameters like SAC, T(D)OC, COD, or BOD, and at the same time, turbidity / solids concentration.

color::lyser II

The color::lyser is a dedicated on-line color monitor. It can accurately measure color, providing both True and Apparent color in Hazen units.

multi::lyser™ II / III

The multi::lyser is a combination of s::can carbo::lyser and nitro::lyser. That means that the s::can multi::lyser is characterised by measuring organic carbon & nitrate for a multitude of pre-defined applications.

nitro::lyser™ II

Applications range from (ultra) pure water in the μg/l range up to industrial waste waters in the g/l range. The nitrate concentration displayed is not sensitive to cross-influences from other substance groups such as organic carbon or total solids.

ozo::lyser II

Measurement of ozone in water is what the ozo::lyser is optimized for. This member of the spectrometer family is optimized to determine concentrations of ozone dissolved in water on-line and in situ.


The sulfi::lyser is ideal for the measurement of TSS & HS & NO3-N and in combination with the con::cube terminal and an additional pH::lyser it can also be used to measure H2S.

uv::lyser II

The uv::lyser monitors turbidity or TSS and up to 4 freely chosen wavelengths between 190 and 390 nm.


chlori::lyser™ from pma monitors free chlorine (Cl2 + HOCl + OCl-) or total chlorine (free chlorine + combined chlorine)


The ion selective multi-parameter ammo::lyser is found to be an entirely reliable device outclassing conventional analysers regarding measurement stability and selectivity.

i::scan 5 mm

i::scan – the new miniature multi-parameter spectrophotometer probe will revolutionize online water quality monitoring.

i::scan 35 mm

The new i::scan combines the high performance of a multi wavelength spectrophotometer with even lower costs than simple photometers!

Truly intelligent

Our s::can range measures a wide range of parameters in numerous applications. From our very solid-state pH-probe to our highly innovative spectral probes, all our products are developed with the same philosophy in mind: s::can measuring instruments are intelligent, robust and require little or no maintenance. They can be seamlessly integrated with other s::can systems but are also compatible with third-party systems.


More than 5000 s::can monitoring systems are in use worldwide for drinking, environmental, waste, and industrial water applications.

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