Winland offers three WaterBug® models for dependable water detection. Ideal for basement sump pumps, drain storage areas, computer rooms, document storage areas, warehouses and sprinkler systems. WaterBug® sensors work when a conductive bridge is formed between two contacts. Utilizes 9V battery for stand-alone operation. Run as many as 6 sensor probes up to 100' (30.48 m) away from the unit for wide area protection. Purchase through your local low-voltage Security Distributor.