RW1990 writable ibutton

Products Name: TM ibutton

Chip: RW1990

Function:readable and writable

Aplication: Access control attendance.


Product Introduction

The TM information button (TM card) is used as an identification mark of an identity or an item, which can represent not only the identity of a person, but also the name of a place and equipment. The chip of the TM card (or TM information button) has a code, which can form a one-to-one correspondence with people, places, and equipment.

Application: The TM information button (TM card) is widely used (used in various inspection systems such as smart communities, postal services, railways, fire protection, electric power, cable TV, chemical industry, oil fields, etc., as well as hotel TM door locks, TM water meters, TM electric meter and TM gas meter etc.)

Features: TM card integrated circuit chip is sealed in a stainless steel shell, waterproof, shockproof, anti-corrosion, durable, no wiring; TM card is a passive device, read information by reading and writing equipment power supply;

Product Parameters:


stainless steel+ABS




64 bits readable and 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


Color Optional:

Black, Blue, Red, Pink, Yellow, White, Grey, etc.

Or customized

TM1990A-F5 Ibutton Tag


100pcs/box, 5000pcs/carton

Carton size: 73x24x33cm

GW: 25kg



TM1990A-F5 Ibutton Tag TM1990A-F5 Ibutton Tag

Besides the TM1990A-F5 Ibutton is one of Syntek main products, we can supply more than 2,000,000pcs ibutton every month.

Why choose us ?

High-quality raw materials, high strength, high toughness, good anti-aging

Smooth handle surface without burrs

Handle color, size and shape can be customized according to customer requirements

The handle can be laser printed with logo according to user requirements

High-quality stainless steel material is beautiful and durable

Excellent waterproof, moisture-proof and shock-proof performance, suitable for harsh environments

The surface of the metal button can be laser marked according to user needs


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