RFID Tags and Labels and offered in different from factors. Depending upon the memory size, the encryption typeand the distance across which it has to be read. Some of the most widely used tags are listed below.

1. Low Frequency : Proximity card (2-10cm) smart card Chips availabel: TK4100,EM4102,EM4450,T5577(T5567 updated version), Hitag 1, Hitag 2, Hitag S256, HitagS2048, 125KHz HID chip are all 125KHzchip

2.High Freguency: Mid lony distance smart card (10-80cm) Chi;s available: Mifare 1K S50, Mifare 4K S70, Mifare Ultra light U10, Mifare Desfire, ICODE SssLI, ECODE SLI -S, Ti2048, Ti256, INSIDE2K, Legic mim256, Legic mim2048,JWL872, SHC1108, Fm1208 are all 13.56MHZ chip

3.Ultra High Frequency : Long distance smart card (80cm-8m) Chips availabel: UCODE EPC GEN2/UCODE HSL/ALIEN Higg3 GEN2/Impinj Monza3 GEN2/ Impinj Monaza4 are all 860 - 915 MHZ chip (UHF-chip)