KNF-600PRO Online Deep-Water Multi-Parameter Water Quality Sensor The Kainafu KNF-600PRO is a purpose-built online deep-water multi-parameter sensor engineered for deep lakes, marine monitoring, underground wells and harsh wastewater. It features a robust pressure-resistant structure and self-developed titanium alloy watertight connectors , withstanding water pressure up to 20 bar (200 m depth) for stable long-term operation. Built for Deep Water & Wells 0-200 m measurement