... waterproof 4. meets CE, RoHS, NF, ASTM Child Tracker Introduction: This child tracker is a safety electronic device for protectiing children ... Control: 100% tested before shipping Product Usage:Swimming pools, child, the old, garden, park, boat, sea etc.Export ... RoHSPatent:YesWarranty:1 yearIssue TimeThe year 2012 Function: This child tracker consists of two parts, Base Unit (for parents ...