Product Introduction:

This kind RW1990 tag is embedded the RW1990 chip in a leather holder, it is used for the room key, hotel key. It is main use for copy the DS1990A-F5 ibutton tag.

The principle of unlocking: when the door is opened, the electronic control system of the lock verifies whether the 62-bit password saved in the TM card is the same as the password kept. If they are the same, they will open the door, and if they are different, they will not respond. If you try a certain number of digital strings continuously, it will alarm. In other words, TM cards are different from 2 to the 64th power.

Application field: used in various inspection systems such as intelligent community, postal service, railway, fire protection, electric power, cable TV, chemical industry, oil field, etc., as well as TM door locks, TM water meters, TM electricity meters and TM gas meters in hotels and school dormitories.

Product parameters:


stainless steel+ABS




64bits writable





Operating Distance

Touch reading

Working Life

More than 10 years

Working Model

Passive no battery

Operating Temperature

-40℃ ~ 75℃

Stock Temperature

-50℃ ~ 80℃

Ingress Protection



100pcs/bag, 1000pcs/carton

Carton size: 40x24x33cm

GW: 14kg

Leather RW1990 Tag


What's the payment terms?

We can accept Paypal, Western Union, TT Bank transfer, Alibaba assurance

payment (the payment charge will pay by buyer).

What is the produce time of RW1990 Ibutton tag?

Samples time: 1-5 days;

Bulk order within 7-15 days;

Huge order please contact with seller.

Note: our factory can supply flexible produce time, if you have requirements

of produce time, please contact with seller, we can support your schedule well.

What is the shipping time?

By express DHL/UPS/Fedex/TNT is about 5-7 days

By sea is about 30-40 days

If ship to Russia, we have warehouse in Moscow, you can pick up products in our Moscow warehouse.


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