Time and cost saving ozone sensor Electrochemical ozone sensor, titanium version, maximum pressure 100 bar, with Smart capability. The C1100 can measure O3 below 1 ppb level with performance unrivalled in the market. The Hach Orbisphere C1100 sensor is designed to measure ozone in ultra pure water loops, or in the sanitising phase of any beverage production line. This unique sensor does not require a specific set up or skilled operators for in-line operation. The Orbisphere C1100 has the lowest drift and requests less than 2 instances of maintenance/calibration per year. The instrument provides drift-free and accurate measurements due to true zero reading. The unique platinum guard ring technology prevents false signals arising from the electrolyte. The C1100 ozone sensor has a unique air calibration feature that offers operators a quick and easy method to calibrate without requiring an external standard. Air calibration provides an accuracy of ±5 % (achieving better than ±1 % against an ozone standard of known concentration). The Orbisphere C1100 is the only sensor that provides such certified high accuracy!