# Smart switch Sonoff BASICR4 10A ESP32 — Wi‑Fi relay module for home automation

**URL:** https://aio.lv/en/product--sonoff-basicr4--10823239
**Data updated:** 2026-05-18 20:34 (EEST)
**Category:** Smart Switches
**Manufacturer:** Sonoff
**Manufacturer code:** BASICR4
**EAN:** 6920075741865
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.49 €
**Prices and availability valid until:** 2026-07-05 23:59
**Price without VAT (21%):** 9.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sonoff-basicr4--10823239

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.06.2026 | free |
| Pickup points | 18.06.2026 | 1.99 EUR |
| Courier delivery to door | 18.06.2026 | 4.99 EUR |

## Summary description

Sonoff BASICR4 10A ESP32 is a compact smart switch with ESP32 chipset and 10A relay, designed for controlling lights and small appliances over Wi‑Fi. Suitable for integration in home automation setups, it enables remote on/off control, scheduling and voice assistant compatibility. Ideal for improving convenience and energy management in homes.

## Long description

Sonoff Smart Switch BASICR4 Wi‑Fi Smart Switch is a compact Wi‑Fi relay module with an ESP32 chipset and a 10A relay designed for controlling lights and small household appliances. The device supports remote on/off control, scheduling, group control and voice assistants, and includes a built‑in temperature sensor and gateway features for local management.
Advantages
The BASICR4 uses an advanced ESP32 chip to provide improved performance and energy efficiency in a small form factor. Magic Switch mode enables control via the app even when the traditional wall switch is turned off. eWeLink‑Remote gateway functionality allows two‑way control and creation of smart scenes while group control simplifies simultaneous management of multiple devices. The unit includes real‑time temperature monitoring and holds CE, FCC and ETL certifications.
Suitable for
Controlling indoor lighting
Managing small appliances such as kettles or humidifiers
Automating heaters and garage door relays within 10A limit
Integration into home automation scenes and schedules
Key specifications
Brand: Sonoff
Model: BASICR4 (MPN: BASICR4)
Chipset: ESP32
Relay current: 10A (maximum power 2400W @ 240V)
Input / Output: 100–240V AC, 50/60Hz
Wi‑Fi: IEEE 802.11 b/g/n 2.4GHz
Compatibility: Amazon Alexa, Google Home
Operating temperature: -10°C to 40°C
Material: PC V0
Dimensions: 88 x 39 x 24 mm; Weight: 45.8 g
How to use
Install the Sonoff BASICR4 inside a suitable junction box or fixture following local electrical codes. Connect input (live and neutral) and output wires according to the wiring diagram in the instruction manual. Power the module from a 100–240V AC supply. Add the device to the eWeLink app over a 2.4GHz Wi‑Fi network, configure device name, schedules, groups and scenes, and link to Amazon Alexa or Google Home if voice control is required.
Usage recommendations
Ensure the controlled load does not exceed 10A or 2400W at 240V. Do not expose the unit to temperatures outside the specified operating range. For safety, follow the included instruction manual and, if unsure, have a qualified electrician perform the installation.

## FAQ

### How much does the Smart switch Sonoff BASICR4 10A ESP32 cost, and is it available for purchase?

The price is 11.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 34 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 15.06.2026 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 Sonoff 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 Sonoff 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/10823239/60135233_large.webp