Inexpensive open source data loggers and sensors for water levels and hydrologic measurements in least developed countries وثيقة 12 تموز/ يوليو 2021 The Case Study presents the innovation project implemented in the framework of the WMO HydroHub Second Innovation Call in Afghanistan and Bhutan.Implementation dates: December 2018 to May 2021 Innovation supplier: Northern Widget Project implementation country: Afghanistan and Bhutan Download document شارك: Document type: Case study