TK-108 Waterproof GPS Tracker System - Black + Yellow
GSM/GPRS module: SIMCOM SIM900; Frequency: 850/900/1800/1900MHz; Communication protocol: TCP/UDP; CPU:ARM7; GPS moudle: SIRF3; Sensitivity: -159dBm; Positioning accuracy: 5-20m; Positioning time: 45s for cold boot 1s for warm start; Battery: 3.7V 1100mAh; Standby: 250h; Storage temperature: -40~+85'C; IPX8 waterproof.