Physical 1. Material? ABS enclosure 2. Size? 122.4 mm( L) x84 mm ( W) x20mm (H) 3. Interface? USB, RS232 4. Antenna? Build-in circular polarization antenna 5. Weight? 0.3 kg 6. Protocol? ISO18000-6C & EPCglobal Class I Gen 2 RF&Electrical 1. Frequency? US 902~ 928 Mhz 2. RF output: 0- 26 dBm, software adjustable 3. Read Distance?up to 1 meter 4. Inventory speed: > 50 tags/ second 5. Tag buffer?370 tags@128bit EPC 6. RSSI?Support 7. Power supply: USB d.c 5V or external RS232/ WG d.c 12V 8. Software? Demo software, SDK, DLL Environment 1. Operating condition? -20 ~ 60 C, 5~ 95% RH, no condensation 2. Storage condition? -5 ~ 45 C, 5~ 95% RH, no condensation 3. Certification?CE, FCC