Testo0572 1560 174T 1-Channel Mini Temperature Data Logger with Locking Wall Holder and Batteries, -22 to 158 Degree F Range, +/-0.9 Degree F Accuracy

Testo 174T Humidity Meter – Data Logger for Temperature and Humidity – Humidity Monitor for Temperatures from –20 to +70 Degrees Celsius

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