Built-in 8dBi antenna Read up to 6m, Write up to 3m depends on tag and environment. Frequency : 902 – 928Mhz, RS-232 Compatibility: ISO18000-6B, ISO18000-6C(EPC Gen 2) protocol Frequency Band: 902-928Mhz or 865-868Mhz (Optional) RF Power: 0-30dbm adjustable; Interface: TCPIP/RJ45, RS232/UART, RS485, Weigand26/34; Provide free demo for testing and free SDK for development (Java, C#, VC++) Dimension 235mm x 235mm x 57mm ABS Waterproof, IP54 Compliant Application Type : Intelligent traffic management such as ETC, custom clearance, parking lot, and automatic weighing Logistics such as container management, pallet management, and asset tracking Ticketing Access control FREE tiang Bracket UHF Reader