Functional Specifications: RFID Protocol: EPC Class1 Gen2, ISO18000-6C Frequency: (US) 902-928MHz, (EU) 865-868MHz IC type: Alien Higgs-3 Memory EPC 96bits (Up to 480bits) , USER 512bits, TID64bits Write Cycles: 100,000times Functionality: Read/write Data Retantion: Up to 50 Years Applicable Surface: Metal Surfaces Read Range :(Fix Reader:ThingMagic FU-M6-E) 100cm - (US) 902-928MHz, on metal80cm - (EU) 865-868MHz, on metal Read Range :(Handheld Reader: OP9908, R2000) 60cm - (US) 902-928MHz, on metalcm - (EU) 865-868MHz, on metal Warranty: 1 Year Physical Specification: Size: Diameter 5mm Thickness: 4.0mm Material: FR4 (PCB) Colour: Black Mounting Methods Weight: 0.5g Environmenal Specification: IP Rating: IP68 Storage Temperature:С to +15 operation Temperature: to +1 Cerifications: Reach Approved, RoHS Approved, CE Approved