Testo 417 Anemometer – Handheld 4-inch Airflow Meter for Air Velocity, Volume Flow, and Temperature at Air Inlets and Outlets – CFM Meter HVAC 32 to +122 °F with App Compatibility

testo 417 Anemometer Handheld Set with Measurement Funnels and Flow Straightener - CFM Meter HVAC 32 to +122 °F – Air Flow Meter for Air Velocity, Volumeflow, and Temperature with App Compatibility

Testo 605i | Thermohygrometer for Indoor Temperature and Humidity Measurement | with Bluetooth Support

testo 405i – Anemometer handheld for air velocity, in-duct airflow, and temperature – CFM meter with Bluetooth and App operation