Zebra LI4278. Read rate (max): 547 reads/s, Light levels (direct sunlight): 0 - 108 lx, Wavelength: 612 nm. Standard interfaces: RS-232, RS-485, USB, Keyboard wedge, Cable length: 1.8 m. Product colour: Black, Housing material: Plastic, International Protection (IP) code: IP54. Battery technology: Lithium Polymer (LiPo). Weight: 224 g