Feature:1. Adopt EM inductive card reading technology, no need of touch reading.2. Aluminum alloy body, fine texture, anti-slip, anti-wear and durable to use.3. Easy to operate, just press the switch button to read while closing to the spot.4. With indicator light, red light will be given when reading successfully, and the fuselage will vibrate.5. USB interface, directly connected to the computer to read data, no communication socket required.Specification:Condition: 100% Brand NewItem Type: Patrol SystemColor: As picture shownRead Button: Non-contact 125KHZInduction Distance: Approx. 3-6cm/1.2-2.4inBody Material: Aluminum AlloyProtection Grade: IP67, Waterproof and DustproofCommunications: USB cable, no communication socket requiredStorage Capacity: 7200pcsWorking Environment: -40℃ - 70℃Power Supply: Built-in 3.6V 800mAh Lipo Batteries, Low Power Consumption, Support Direct Charge Package List:1 x Induction Patrol Machine1 x CD1 x Instruction1 x Charger1 x Data Transmission Cable1 x Strap1 x Protection Cover