1Adopt EM inductive card reading technology, no need of touch reading. 2Aluminum alloy body, fine texture, anti-slip, anti-wear and durable to use. 3Easy to operate, just press the switch button to read while closing to the spot. 4With indicator light, red light will be given when reading successfully, and the fuselage will vibrate. 5USB interface, directly connected to the computer to read data, no communication socket required. 6The back cover has a waterproof sealing ring, with cover opening tool, practical to use. 7Good compatibility, it can read all 125K frequency on the market. 8The fixed structure of the whole machine adopts special explosion-proof design, sturdy, waterproof and impact resistant. 9Arranged in the patrol line, no need of power supply and wiring, convenient for using. 10Built-in rechargeable battery, easy to charge, bring much convenience for you.Condition: 100% Item Type: Patrol System Color: As picture shown Read Button: Non-contact RFID 125KHZ Induction Distance: Approx. 3-6cm/1.2-2.4in Body Material: Aluminum Alloy Protection Grade: IP67, Waterproof and Dustproof Communications: USB cable, no communication socket required Storage Capacity: 7200pcs Working Environment: -40 - 70 Power Supply: Built-in 3.6V 800mAh Lipo Batteries, Low Power Consumption, Support Direct Charge 1 x Induction Patrol Machine1 x CD1 x Instruction1 x Charger1 x RFID Data Transmission Cable1 x Strap1 x Protection Cover