# Wireless thermostat regulator Euroster E4040 TXRX black — model E4040TXRXB

**URL:** https://aio.lv/en/product--euroster-eue4040txrxb--11867708
**Data updated:** 2026-03-09 17:44 (EET)
**Category:** Home Automation
**Manufacturer:** Euroster
**Manufacturer code:** EUE4040TXRXB
**EAN:** 5903240978526
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 108.99 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 90.07 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--euroster-eue4040txrxb--11867708

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Euroster E4040 TXRX is a wireless thermostat regulator in black (model E4040TXRXB). The device provides remote temperature control and regulation for heating systems via a wireless transmitter/receiver pair. Suitable for residential or small commercial installations where wireless setpoint adjustment and room temperature management are needed.

## Long description

The Euroster E4040 TXRX black (model E4040TXRXB) is a wireless thermostat regulator designed for remote temperature control and regulation of heating systems. The set includes a wireless transmitter and receiver pair that enables room temperature management and setpoint adjustment without direct wiring between the thermostat and the heating controller. The compact black design is suited to residential interiors and small commercial installations where a wireless solution is preferred.
Advantages
The device allows wireless transmission of temperature setpoints and control signals, reducing installation complexity and avoiding the need to run cables between rooms and the heating unit. The integrated features support accurate room temperature control and convenient placement of the thermostat in the most representative spot for measuring ambient conditions. The included receiver provides a compatible interface to common heating equipment and supports reliable signal reception within the specified wireless range.
Suitable for
 Retrofit installations where running thermostat wiring is impractical
 Residential homes and apartments requiring remote temperature adjustment
 Small commercial or office spaces needing simple wireless room control
 Rooms where thermostat relocation is desired for better temperature sensing
Key specifications
 Wireless transmitter and receiver pair for temperature regulation
 Colour: black housing for the thermostat unit
 Compatibility with standard heating controllers via receiver outputs
 Room temperature measurement and setpoint adjustment capability
 Intended for residential and small commercial heating systems
How to use
Mount the thermostat transmitter in the room where accurate ambient temperature measurement is required, avoiding direct sunlight and heat sources. Install the receiver near the heating controller or boiler and connect it according to the heating system manufacturer's wiring requirements. Pair the transmitter and receiver following the product pairing procedure so that setpoint changes on the thermostat are transmitted wirelessly to the receiver. After installation and pairing, set the desired temperature on the thermostat; the receiver will activate the heating system to maintain the selected setpoint.
Usage recommendations
For stable operation, place the thermostat away from drafts, radiators, and direct sunlight, and ensure the receiver is within the recommended wireless range from the transmitter. Verify compatibility with the heating equipment before installation and follow local electrical safety regulations when connecting the receiver to the heating controller.

## FAQ

### How much does the Wireless thermostat regulator Euroster E4040 TXRX cost, and is it available for purchase?

The price is 108.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 16.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Wireless thermostat regulator Euroster E4040 TXRX be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Euroster 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 Euroster 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/11867708/67274059_large.webp