To reach the best performances of the sensor (accuracy and repeatability), favor wall mounting. Temperature measurement will be more consistent with temperature felt. To ensure a good temperature measurement, please follow the positioning recommendations: 

• Avoid direct sun exposure,
• Move away from heat/cold sources (ideally 1m from radiator, air conditioning, wood burner, …),
• Move away from direct airflow (at least 25cm away of an opening),
• Avoid enclosed area, where the product will not be influenced by the ambient air.