Data from the prototype device protecting the source of drinking water supplying population of the Krásnohorská Dlhá Lúka municipality,
accompanied by discharge measurements at the stream gauge no. 1862 - Krásnohorská Dlhá Lúka (spring), published by Slovak hydrometeorological institute (SHMÚ).
The prototype device records measurements every 5 minutes, but are simplified to averaged hourly values as shown on charts.« back