Using RFID sensor reader technology, color plastic bag technology, the appearance of fine, alloy shell, rugged waterproof seal; data is read successfully, vibration and light blue water tips, touch-button start LED spot lighting, night lighting equipment inspections; FLASH memory 4MB of memory, storage capacity 10000 (expandable 65000), the internal structure of the exclusive use of the circuit board embedded in contoured plastic guts integrated design, ultra-low power circuit design, with corrosion resistance, oxidation, water / drop resistance / anti- sabotage and other functions. Product Specifications: Size: 15.5 * 4.2 * 3.7cm Weight: 230g Material: Alloy LED light irradiation distance: 5-6m (Touch 5 seconds lights, touch one second off) Reader response time: ≤0.1s communication : USB operating power; 10mA power supply: 3.7V lithium polymer rechargeable battery Operating temperature range: -40 ℃ -70 ℃ Operating humidity range: 30% -95% protection: IP55 rating