You will be able to read our terms and conditions the day we do business, but, in short, we have a quality system that ensures that we do not need to exchange failed deliveries.
If a defect shows up within 12 months due to our own failures or mistakes, we will exchange faulty sensors for new ones. To be clear, when you buy a calibrated sensor and then start to mount it, there are risks that the calibration will change due to e.g. heat, or a board design that does not allow the correct air flow. This is the reason we strongly recommend our Sensor onBoard service. Thereby, the responsibility falls more on us.