TrolMaster Water Content Sensor (WCS-1)TROLMASTER AQUA X WATER CONTENT SENSOR The WCS 1 water content sensor allows the user to monitor the % of water nutrients within the growing medium. The moisture level water content is displayed in real time on the WCS module itself, the Aqua x and the APP. That data is displayed on a graph (through the APP) and helps the user visualize the dry down time, and to make adjustments to their irrigation timers irrigation cycles. Up to 8 WCS 1 can be