# TOUCHMEMORY RW1990 Rewritable iButton Chip

**URL:** https://aio.lv/en/product--touchmemory-2770040019901--12506532
**Data updated:** 2026-06-10 09:33 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** TOUCHMEMORY
**Manufacturer code:** 2770040019901
**EAN:** 2000514142980
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 2.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 2.47 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--touchmemory-2770040019901--12506532

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.06.2026 | free |
| Pickup points | 01.07.2026 | 1.99 EUR |
| Courier delivery to door | 01.07.2026 | 4.99 EUR |

## Summary description

The TOUCHMEMORY RW1990 is a rewritable iButton chip designed for access control systems. This electronic key allows for multiple read and write cycles, making it a versatile solution for security applications, intercom systems, and identification tasks. It features a robust design for reliable performance in various environments, ensuring seamless integration with compatible readers and access control hardware.

## Long description

The TOUCHMEMORY RW1990 is a high-quality rewritable iButton chip engineered for efficient use in modern access control systems. This electronic key provides a reliable solution for identification and security management, allowing users to perform multiple read and write cycles as needed. Constructed from durable metal with a galvanized finish, the device is built to withstand daily wear and tear while maintaining consistent performance across various environmental conditions.
Advantages
The primary benefit of the RW1990 iButton is its versatility in access control applications. Because it is rewritable, it offers significant flexibility for administrators who need to update or change access permissions frequently without replacing the physical hardware. Its robust metal construction ensures long-term durability, while the galvanized coating provides essential protection against corrosion, making it suitable for both indoor and outdoor installation environments.
Suitable for
Intercom systems for residential and commercial buildings
Access control for restricted areas
Employee identification and time tracking systems
Security management for gated communities
When it may not be suitable
This chip is not compatible with systems that require non-rewritable or read-only iButton keys. Furthermore, it may not function correctly with readers that do not support the specific communication protocol used by the RW1990 series.
Key specifications
Material: Metal
Finish: Galvanized
Functionality: Rewritable
Compatibility: Standard iButton readers
How to use
To use the RW1990, simply present the chip to the compatible iButton reader installed on your access point. If you need to program or rewrite the chip, use a dedicated iButton programmer device. Place the chip into the programmer's slot and follow the software instructions to write the required identification data onto the chip. Once programmed, the key is ready for immediate use in your access control system.
What to consider before purchase
Verify that your existing access control hardware supports rewritable iButton technology.
Ensure you have access to a compatible programming device if you intend to rewrite the chip data.
Check the physical dimensions of your current reader to ensure the iButton form factor is compatible.
Usage recommendations
For optimal performance and longevity, keep the contact surface of the iButton clean and free of debris. Avoid exposing the chip to extreme magnetic fields or high-voltage electrical discharges, as these may interfere with the internal data storage.

## FAQ

### How much does the TOUCHMEMORY RW1990 Rewritable iButton Chip cost, and is it available for purchase?

The price is 2.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 138 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 26.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All TOUCHMEMORY products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized TOUCHMEMORY service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12506532/68848061_large.webp