SOA-ds1990 ibuttin SGS Certification It is copy electrnicn key,RW1990 Long-term inventory,500,000 good price&stable function

 RW1990 is my company R&D and production.It's may duplicate key,and it's a device that reads, writes, or erases data on a storage medium.Operating temperature 40 ~ 85 degreesMainly used in electronic locks, card management systems etc.

Rewritable TM/DS1990A-F5 ibutton compatible with ds1990 with 304 stainless steel