Regular pool water testing and maintenance of the physio-electrochemical properties are essential for ensuring a safe and healthy swimming environment. Failure to maintain the freshness in water quality can lead to damage or deterioration of the pool features which can adversely impact the human body. 

Combining waver energy harvesting and water quality sensing, the free-floating completely isolated device demonstrates a portable, freestanding, wireless, autonomous, and self-powered pool monitoring system for maintaining a hygienic and safe swimming environment.