Material: Silicone Reading Distance: 50-80cm Based on TK4100 chip. with EM9917 reader. Model No. wr8858Reading Distance 60mmBase on H4102 chip, with EM9917 readerOperating temperature -40oC to 100oCStorage temperature -40oC to 120oCMaterial SiliconeWater proof Y TechnologyTK4100 (125KHz, 64bit, R/O) YEM4102 (125KHz, 64bit, R/O) YI-Code (13.56MHz, 512bit, R/W) YMifare 1 (13.56MHz, 8Kbit, R/W) ...