Photo 1 of Testo 417 Anemometer Set with Measurement Funnels and Flow Straightener - Handheld Airflow Meter for Air Velocity, Volume Flow, and Temperature – CFM Meter HVAC 32 to +122 °F with App Compatibility Inlet/Outlet Measurement Flow Straightener + Funnel Kit

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Photo 1 of Testo 417 Anemometer Set with Measurement Funnels and Flow Straightener - Handheld Airflow Meter for Air Velocity, Volume Flow, and Temperature – CFM Meter HVAC 32 to +122 °F with App Compatibility Inlet/Outlet Measurement Flow Straightener + Funnel KitPhoto 2 of Testo 417 Anemometer Set with Measurement Funnels and Flow Straightener - Handheld Airflow Meter for Air Velocity, Volume Flow, and Temperature – CFM Meter HVAC 32 to +122 °F with App Compatibility Inlet/Outlet Measurement Flow Straightener + Funnel KitPhoto 3 of Testo 417 Anemometer Set with Measurement Funnels and Flow Straightener - Handheld Airflow Meter for Air Velocity, Volume Flow, and Temperature – CFM Meter HVAC 32 to +122 °F with App Compatibility Inlet/Outlet Measurement Flow Straightener + Funnel KitPhoto 4 of Testo 417 Anemometer Set with Measurement Funnels and Flow Straightener - Handheld Airflow Meter for Air Velocity, Volume Flow, and Temperature – CFM Meter HVAC 32 to +122 °F with App Compatibility Inlet/Outlet Measurement Flow Straightener + Funnel KitPhoto 5 of Testo 417 Anemometer Set with Measurement Funnels and Flow Straightener - Handheld Airflow Meter for Air Velocity, Volume Flow, and Temperature – CFM Meter HVAC 32 to +122 °F with App Compatibility Inlet/Outlet Measurement Flow Straightener + Funnel Kit