At our head offices in Ennetbürgen, Switzerland, a staff of 60 people works in development, production, sales and customer services. Our qualified and motivated team is focussed on product quality and services that ensure customer satisfaction.

70 sales partners in 80 countries worldwide guarantee that new and existing customers will always have a SIGRIST representative nearby. Ongoing training and support are provided to our sales and service partners by HQ specialists, thus guaranteeing that our customers receive competent advice and efficient support when it comes to the application of SIGRIST products.




Turbidimeters (liquids)

AquaScat 2 HT

On-line Turbidimeter (ISO 7027) with free fall flow cell for high turbidities

AquaScat 2 P

On-line Turbidimeter (ISO 7027) for pressurized measurement

AquaScat 2 WTM

On-line Turbidimeter (ISO 7027) with free fall flow cell with high resolution

DualScat Ex

In-Line Turbidimeter for hazardous areas

LabScat 2

Dual-Angle Lab Turbidimeter


In-line Turbidity Monitor for Medium to High Turbidity


In-Line Turbidimeter

AquaScat 2 HT



Dust monitors


Smoke Detector


Dust Concentration Monitor for Hot Gasses

StackGuard system

Dust Emission Measuring System

VisGuard Extractive

Visibility Monitor

VisGuard In-situ

Visibility Monitor

VisGuard OMD

Oil Mist Detector






ColorPlus 2 bypass

Absorption Measuring Instrument bypass

ColorPlus 2 in-line

Absorption Measuring Instrument in-line

ColorPlus 2 O3 Gas

Ozone meter for gases

ColorPlus 2 O3 Water

Ozone Meter for ultra pure water

ColorPlus Ex bypass

Absorption measuring Instrument bypass for hazardous areas

ColorPlus Ex in-line

Absorption measuring Instrument in-line for hazardous areas

ColorPlus 2 O3 Gas




OilGuard 2

Oil Trace Monitor for Mineral Oils

OilGuard 2 Ex

Oil Trace Monitor for Mineral Oils for hazardous Areas

OilGuard Ex M

Oil Trace Monitor for oil discharge monitoring

OilGuard 2



Multi-Parameter Measuring Systems


Multi-Parameter Measuring System for Water Treatment Works




Product monitors


In-line Interface Monitor for Turbidity or Colour