testo 417 Kit 2 – vane anemometer with measurement funnels and flow straightener

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

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