Ping Pong Anemometer

Build your own DIY low cost anemomter.just with a ping pong ball, a string and this app.It was developed for paragliding, sailing, surfing, rc planes, education, airflow, etc. and of course for fun. ✓ Works offline✓ Easy to read due to its LCD 7-segment style✓ Large numbers✓ Perfect contrast✓ Unit selection resp. conversion (m/s, km/h, mph, kt, Bft)✓ Display always-on functionality