Watch Wristwatch GPS GSM GPRS Tracker TK109 for Child Kid Elderly

Description: 1.Inbuilt GPS Module. 2.Internet positioning service center, used to receive and send positioning information. 3.GSM /GPRS modem supports Quad frequency bands, i.e.850/900/1800/1900 MHz. 4.High-sensitivity, new workmanship and the most advanced GPS chip. 5.Can work effectively in limited space such as urban canyon. 6.Low energy consumption. 7.Fast signal acquisition. 8.Supports single positioning and continuous tracking. 9.Supports alarming and remote monitoring. 10.Supports fast dial button. 11.Supports the location information inquiry by SMS and Internet. 12.May monitor without disturbing the tracked person and realizes real-time tracking. 13.Can position the holder by call or SMS. 14.In emergency, press the SOS button to have an accurate positioning. 15.Technical Specifications. Specification: DIM:64.5*45.5*17.5mm Weight (Kg):0.33 Network:GSM/GPRS Band:850/900/1800/1900Mhz GSM/GPRS Module:Sim900B GPS Module:SIRF3 chip GPS Sensitivity:-163dBm GPS Accuracy:5m Applicable Vehicle Power:12 V Storage Temp:-40C to +85C Operation Temp.:-20C to +65C Humidity:5%--95% GSM Module:GSM 850/900/1800/1900 MHz Quad frequency GPS Sensitivity:-163dBm GPS Center Frequency:L1, 1575.42MHz GPS Positioning Accuracy:5-25m GSM Positioning Accuracy:100-500m Speed Accuracy:0.1 m/s Time Accuracy:Synchronous with GPS GPS Datum:WGS-84 Hot Start:less than 1s Warm Start:less than 38s Max. altitude:18000m Max. speed:515m/s Gravitational Acceleration:less than 4g Operating Temperature:-20---65 Humidity:5%---95% Dimensions:64.5mm45.5mm17.5 mm Voltage:Rechargeable 450mAh battery Power Supply:DC5V Standby Time:more than 48h Package Included: 1 X Watch GPS Tracker