The Sutro tests three times per day every 8 hours at 8:00am, 4:00pm, and 12:00pm PST. We test 3 times a day, as we're utilizing this data to build out machine learning so we can better predict water chemistry.
Currently the TA is slowest moving parameter we test for, so we only test for the TA in the morning each day, on the 8 AM PST reading!
The pH and fCl test 3 times daily though!
However, we do offer the ability to customize your test times provided you're on the Premium plan!
If you're already on the Premium plan, you can navigate to your Sutro app, open the settings and select 'Timing.' You'll be able to adjust your testing times on this screen, and control when the TA reading is taken as well.