... being tracked. SpecificationsTx Frequencygps :1580-1700MHZ Interception frequencyWorld GPS satellite special channelL1/L2Power sourceDC12VConsumption current150mAWorking temperature-40 to ... court, library, exam room, school, cinema, theater, and hospital etc.2. At places where using mobile phones is ... as government, military, finance, security, police and command center etc. EST-808KA1 vehicle tracker