SHW-302 portable tracker/locator adopts advanced technology----GPSone, combined with self-designed antenna. Dimension: 90*44*10mmWeight: 40gOperating voltage: DC3.7V---5VOperating temperature: -3050Relative humidity: 5%85%RHWay of positioning: GPS+CDMA base stationsPositioning accuracy: 5m(GPS positioning)5m-100m(base station positioning)Inquiry: webtext messagescustomer servicesMonitoring scope: ...