RW1990 ibutton Sealed with stainless steel and plastic shell Rust-resistant and corrosion-resistant Unique identity button

  TM card 1990A outstanding performanceSealing strong, the water can be properly read number;304 stainless steel package, never rust, long-term use will not sag. Human variant 1MM severe blow can still be used normally.Operating temperature -40 ~ 85 degrees.2401 chip package with a new, globally unique 64-bit serial number, family code 01, the global general without any use restrictions.TM card, all materials used are in line with ROSH standardsFeatures: water can work; a serious blow after deformation can still work; performance, stability, quality assurance, the price of domestic minimum. TM card (information button) is widely used in security patrol, sauna door locks, electronic locks, access control intercom systems.    Welcome domestic and foreign distributors, traders, manufacturers come to call to discuss and order!

                                                                                                   

DS1990A-F5 ibutton with 304 stainless steel, serial number