Conductivity sensors play an important role in determining water quality and are able to measure the conductivity of most electrolyte solutions. IST AG conductivity sensors are an ideal choice for water quality and wastewater treatment applications, amongst others. The IST AG LFS1107 conductivity sensor offers a typical cell constant of 0.42 cm^-1 and a conductivity measuring range from 10 μS/cm to 200 mS/cm within an operating temperature range of -30 °C to +100 °C. Further advantages of the LFS1107 thin-film conductivity sensor include wide conductivity and temperature range, small footprint, improved chemical resistance, and excellent long-term stability.