Monitoring apparatus, namely, an electronic hand-hygiene compliance-monitoring system for use with liquid dispensers, particularly with dispensers for soap, disinfectants and hand-cleaning preparations, comprising a device in the dispenser for collecting, storing and saving data and transmitting the data to a remote cloud-based IoT core, and recorded cloud-based software in the remote cloud-based IoT Core for monitoring hand hygiene compliance; monitoring apparatus, namely, electronic hand-hy...