Culligan International Company announces the enhanced digital Aqua Sensor®, an advanced digital probe that sits inside its Smart-Sensor” residential water softener. It continuously monitors water chemistry, automatically adjusts to changes in water conditions and activates regeneration only when needed. An easy-to-read, backlit display alerts homeowners to check salt levels and when service is required. Simple to program, cost-efficient and easy to maintain, the unit features specially designed electronics that hold power for up to 24 hours in case of an outage.www.culligan.com