Readable And Writable RW1990 Keyfobs Tag

Readable and Writable RW1990 Keyfobs Tag

Model No.: RW1990, TM1990A-F5

What is an iButton?

An iButton is a computer chip which is enclosed in a 16mm thick durable weather resistant stainless steel can. Because of their small size and extreme durability, iButtons can travel virtually anywhere.

How does an iButton communicate?

The iButton is a slave device and requires a master to initiate communication to it.

 A master can be a PC or a micro processor. With the master constantly polling the iButtons,

 communication to iButtons can be started by a simple touch to a 1-Wire interface called a Blue Dot Receptor. 

Every iButton has a unique 64-bit serial number, which gives it a unique 1-Wire network address.

What are iButtons being used for?

Attached to key fobs, rings, watches, or other personal items for applications such as access control to buildings and computers.

 Additionally, iButtons are commonly mounted to storage crates, trucks, and other equipment for asset management. Furthermore, 

iButtons are mounted to refrigeration units, outdoor environments, and even to animals for various data logging tasks

FAQ
High quality readable and writable RW1990 keyfobs tag

Q:Can you make our logo?
A:Yes, we offer OEM service, we could print it according to your design.

Q:What's the MOQ?
A:500pcs. For details, please contact us.

Q:What’s the sample time and lead time for mass productions?
A:Normally, sample lead time is 1-2 days, Mass (5000pcs) production lead time is about 7days.

Q:What’s the payment term?
A: We accept T/T, Western Union and Paypal. Full prepaid for small orders and 30% deposit and balance 70% before shipping for big quantity.

Q:What’s the shipping method?
A: By express(Fedex,DHL, UPS and TNT, etc.) By sea or by air.