Watch Wristwatch GPS GSM GPRS Tracker TK109 for Child Kid Elderly

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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*17.5mmWeight (Kg):0.33Network:GSM/GPRSBand:850/900/1800/1900MhzGSM/GPRS Module:Sim900BGPS Module:SIRF3 chipGPS Sensitivity:-163dBmGPS Accuracy:5mApplicable Vehicle Power:12 VStorage Temp:-40C to +85COperation Temp.:-20C to +65CHumidity:5%--95%GSM Module:GSM 850/900/1800/1900 MHz Quad frequencyGPS Sensitivity:-163dBmGPS Center Frequency:L1, 1575.42MHzGPS Positioning Accuracy:5-25mGSM Positioning Accuracy:100-500mSpeed Accuracy:0.1 m/sTime Accuracy:Synchronous with GPSGPS Datum:WGS-84Hot Start:less than 1sWarm Start:less than 38sMax. altitude:18000mMax. speed:515m/sGravitational Acceleration:less than 4gOperating Temperature:-20---65Humidity:5%---95%Dimensions:64.5mm45.5mm17.