# Wireless Thermostat/Regulator Euroster E4040TXRX

**URL:** https://aio.lv/en/product--euroster-e4040txrx--11867688
**Data updated:** 2026-03-09 17:44 (EET)
**Category:** Home Automation
**Manufacturer:** Euroster
**Manufacturer code:** E4040TXRX
**EAN:** 5903240978328
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 73.99 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 61.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--euroster-e4040txrx--11867688

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Euroster E4040TXRX is a wireless thermostat/regulator designed to control heating systems. The unit provides remote temperature regulation and wireless communication between sensor and receiver, enabling on/off control of boilers or heating circuits. Suitable for residential and light commercial use where wireless temperature sensing and basic programmable control are required.

## Long description

The Euroster E4040TXRX wireless thermostat/regulator provides remote temperature sensing and on/off control for boilers and heating circuits. Designed for residential and light commercial applications, the unit separates the wireless sensor (transmitter) from the receiver/controller to offer flexible placement of the temperature sensor and a straightforward control interface for heating systems. It supports basic programmable operation and wireless communication between the transmitter and receiver to maintain desired room temperature without wiring between sensor and controller.
Advantages
The wireless design allows placement of the temperature sensor where it best represents room conditions, reducing installation complexity and eliminating the need for additional wiring. The regulator provides reliable on/off control suitable for most boilers and heating circuits, with a simple interface for setting target temperatures and schedules. Its compact form factor and compatibility with typical residential heating systems make it a practical option for retrofit projects and new installations where wireless sensing is preferred.
Suitable for
Controlling residential boilers and heating circuits with on/off control
Rooms where a wireless temperature sensor is needed to avoid new wiring
Light commercial spaces requiring simple programmable temperature regulation
Retrofit installations where sensor placement flexibility is important
Key specifications
Wireless transmitter and receiver configuration for remote temperature sensing
On/off control output for boilers or heating circuits
Programmable temperature setpoints and basic scheduling functions
Compact size suitable for wall mounting or panel installation
Operating range suitable for typical indoor residential environments
How to use
Mount the wireless transmitter in a representative location within the room, away from direct sunlight and heat sources, to ensure accurate temperature readings. Install the receiver near the boiler or heating control point and connect its output to the boiler control input or actuator according to the boiler manufacturer's wiring instructions. Pair the transmitter and receiver following the manufacturer's pairing procedure, then set the desired target temperature and any required schedule using the regulator's controls. Verify correct operation by observing that the receiver switches the boiler or actuator on and off in response to room temperature changes detected by the transmitter.
Usage recommendations
For best performance, place the wireless transmitter at typical occupancy height and avoid enclosed cavities or metal enclosures that may attenuate the radio signal. Periodically check battery status in the transmitter if battery-powered and confirm signal strength during commissioning. When integrating with a boiler, follow the boiler manufacturer's guidelines for safe electrical connections and verify that on/off regulation is suitable for the heating system type.

## FAQ

### How much does the Wireless Thermostat Euroster E4040TXRX cost, and is it available for purchase?

The price is 73.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 15.07.2026 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 Euroster E4040TXRX 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/11867688/67274029_large.webp