Feature: Internal core with high-quality gold-plated panels and COB technology to produce highly integrated; TM card is widely used in security patrol, sauna cabinet door locks, electronic locks, access control intercom systems. Don't need extra power,just need the collector supply power for TM1990A-F5 cards with a new 2401 chip package, the only 64-bit serial number, family code 01, used worldwide without any restrictions. Can Be Read in Less Than 5ms Type:electronic module The product (smart card) is fully compatible with DS1990A-F5. 0.3 304 # stainless steel package, durable, never rust and corrosion Must source materials, high temperature resistant resin, sealing performance, anti-aging, resistance to heat Internal support spring piece, stainless steel manufacturing, anti-variant High and low temperature and 100 watertight, vibration and electrical characteristics testing Surface smooth, flat Specification: Operating Range: 2.8V to 6.0V, -40 ~ 85 degrees. Material: plastic Size:16.25 x 5.89mm Color:as the picture Package Include:5pcs Note: 1.Please allow 0.1cm error due to manual measurement. 2.The color of the product will be a little different from the color of the picture because of the difference between the light and the discriminator.