mini RFID UHF metal tag long distance

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 Retention Up to 50 Years Applicable Surface Metal Surfaces Read Range (On Metal) : (Fix Reader:ThingMagic M6-E, 36dBm/4W) 100cm - (US) 902-928MHz, on metal 80cm - (EU) 865-868MHz, on metal Read Range(On Metal) : (Handheld Reader: OP9908,R2000,33dBm/2W) 60cm - (US) 902-928MHz, on metal 40cm - (EU) 865-868MHz, on metal Warranty 1 Year Physical Specification: Size diameter 5mm Thickness 4.0mm with IC bump Material FR4 (PCB) Colour Black (Red, Blue, Green, White) Mounting Methods Weight 0.5g Enivironmenal Specification: IP Rating IP68 Storage Temperature -40°C to +150°C Operation Temperature -40°C to +100°C Certifications Reach Approved,RoHS Approved,CE Approved