This anemometer could be useful for both big and small projects. There's no cord to restrict you, just make sure you've charged the battery.
AC One
testo 405i Bluetooth Thermal Anemometer Smart Probe
Hamilton Gas Products
Testo 405i Bluetooth Thermal Anemometer Smart Probe
Conrad Electronic
testo 405i Smart Probes Anemometer 0 up to 30 m/s
Rapid Online
Testo 0560 1405 405i Smartprobe Bluetooth Thermal Anemometer