The SWLK-1 is a water / leak detector that can be used with the Croptiva controllers. When used with the controllers, the leak detector will constantly monitor the growing area for the presence of water on the floor and immediately alert the user if a leak is detected. If the SWLK-1 senses a water leak within the area, the controllers can be programmed to automatically trigger a local audio-visual alarm, and/or to send SMS alert messages using the free Croptiva app and / or automatically shut-down specific devices within the growing area such as pumps or solenoid valve.