RFID technology + GPRS technology, automatic reader real-time upload / call, can be used for mobile devices in real-time online inquiries patrol locations to achieve a high-speed data transmission / packet send / receive / voice calls and other functions, and traffic accounting data can be transmitted in real time to achieve the management side and patrol officers real-time call reporting / release job. One waterproof plastic guts, shock, dust, low temperature, ultra-low-power design to meet a variety of real-time requirements. Acquisition-related technical parameters: Material: Alloy antistatic: up to 15KV more storage temperature: -40 ℃ - + 85 ℃ temperature independent Humidity: 95% using the communication interface: USB (local) communication rate: 115200bit / s Battery : 3.6V 1800mA / h rechargeable lithium battery charger: USB interface, with full of tips LED, charging red light, green light after full Tip: Lighting Tips maximum recording capacity: 30000 Main features: voice calls, GPRS data upload . On behalf of users: Beijing ADEN Hotel Services Ltd. Shanghai Branch II