HF Icode Slix 15mm Round Heat Resistant PPS RFID Tag is made of PPS and heat-resistant vinyl material with optional RFID chips .Around the antenna and rfid chip we make epoxy filling and fix rfid part can not shake and can work durable . They widely use in laundry procedures ,fire-proof suit management , electrical equipment tracking ,etc . Normal working temperature is﹣20℃~65℃, for special working environment such as -10℃~100℃ (14°F /212°F ) can work each 30mins and 200 cycles , high temperature 100℃(212°F) can store over 1000 hours  , -10℃~140℃ (14°F/284°F) can work each 30mins and 100 cycles .storing under 140℃(284°F) will 200 hours .They all follow IP67 level and water proof ,dust proof ,moisture proof ,etc.Another rfid frequency chips are available .This type is make 2 holes in 2mm diamater and 15mm diameter whole size ,13.56Mhz NXP I Code SLIX also NFC forum type 5 and meet NFC applications with enable nfc devices .