... choose Applications:Swimming pool,hospital,concert,big events, Refrigeration house ,and other special enviroment areaDifferent RFID wristbsands to choose ... -125KHZ chips: EM4102,EM4200,EM4550,T5577,Hitag 1,Hitag S etc -13.56Mhz chips: Mifare 1k,Mifare 4k,Mifare ... 80°C"Weight3.0g ±0.3 gPrinting Option- Silk-screen printing- laser printingApplication- Event Access Control & Security- Hospital Management, ...