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Applications: Anti-theft of the vehicle/heavy equipment, etc. Protection of the child/elderly/disabled/pet, etc.provide peace-of-mind for businessman. Personnel management. Covert criminal tracking. Specifications: Network: Gsm/gprs module: Simcom Sim900 Band: 850/900/1800/1900mhz Communication protocol: Tcp/udp Cpu: Arm7 Gps chip: Sirf3 sensitivity:159dbm accuracy: 5m Time To First Fix: Cold status 45s, Hot 1s Car charge: 12-24v input, 5v output Wall charger: 110-220v 5v Battery: 3.7v 860mah Li-ion Standby: 250hours Storage Temp:40c to +85c Operation20c to +55c Waterproof: Ipx-8 Dimension: 6.5 * 5.5 * 2.2cm Weight: 82g Package size: 14.5 * 9 * 7cm 370g inlcudes: 1 * tracker 1 * Magnet 1 * Belt gusset plate 1 * Ac adapter 1 * Disc 1 * User manual Please notice the machine need with card which doesn't include.