Place your orders by 12:00 noon on 19 December 2025 to ensure that it can be processed before Christmas. Our office closes at 17:00 on 19 December 2025 and reopens on 5 January 2026. The online shop will remain available over the holidays, but orders will not be shipped until the new year.

When do I need to clean or replace the sensors?


It is time to clean the sensors if they are slow to respond, if the pH value is adjusted too frequently or if the results of measurements are strange. If the sensors continue to produce strange results from measurements after they have been cleaned, you probably need to replace them.