# Relay module No name ESP12-4R-MV Wi‑Fi — ESP12‑4R‑MV relay board with Wi‑Fi control

**URL:** https://aio.lv/en/product--no-name-esp12-4r-mv--12082552
**Data updated:** 2026-03-13 08:53 (EET)
**Category:** Home Automation
**Manufacturer:** No name
**Manufacturer code:** ESP12-4R-MV
**EAN:** 5902887067297
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 18.99 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 15.69 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--no-name-esp12-4r-mv--12082552

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

ESP12-4R-MV is a Wi‑Fi relay module by No name (model ESP12-4R-MV) designed to provide remote switching of electrical circuits. The compact relay board integrates multiple relays controllable over Wi‑Fi, suitable for home automation, lighting control, and remote device management. It is intended for integration into DIY smart home projects and system expansions.

## Long description

ESP12-4R-MV is a compact Wi‑Fi relay module by No name that provides remote switching of electrical circuits. The board integrates multiple relays controlled via an ESP8266-based Wi‑Fi interface, enabling networked control of lighting, motors, pumps and other low- to moderate-power electrical loads. The module is designed for integration into DIY smart home projects, control panels and automation systems where compact size and wireless command are required.
Advantages
The relay board offers wireless control through a standard Wi‑Fi connection, allowing devices to be switched on or off remotely without additional wiring for control signals. Its compact footprint simplifies installation in enclosures or behind switch plates. Designed for maker and integrator use, the module is compatible with common ESP8266 tooling and firmware approaches, enabling flexible configuration for HTTP, MQTT or custom control schemes. The design includes multiple relays on a single PCB to reduce space and wiring complexity when controlling several circuits.
Suitable for
Home automation lighting control
Remote switching of small appliances and pumps
Integration into DIY smart home and IoT projects
Control panels and retrofit installations where wireless control is needed
Key specifications
Wi‑Fi connectivity based on ESP8266 platform for wireless control
Multiple SPDT or SPST relays mounted on a single compact PCB
Relay switching capability suitable for low- to moderate-current loads (refer to relay contact ratings before connecting high-power devices)
Operating voltage supply compatible with typical relay coil requirements (check module documentation for exact voltage and current consumption)
Compact physical dimensions allowing installation in confined spaces and enclosures
Control interfaces compatible with common network protocols (e.g., HTTP, MQTT) depending on installed firmware
How to use
Install the module in a suitable enclosure and provide the specified power supply to the board. Connect the controlled circuits to the relay output terminals following safety rules and local electrical codes. Configure the Wi‑Fi parameters and control method using the supported firmware or configuration interface; typical setup options include configuring SSID, password and control endpoints for HTTP or MQTT services. After configuration, test each relay switching action using the network commands or integration platform you selected. Ensure power is disconnected while making wiring changes.
Usage recommendations
Verify relay contact ratings against the intended load and use appropriate fuses or circuit protection. For AC mains applications, follow local wiring regulations and consider mounting the module inside a certified enclosure. Use isolation measures when integrating with safety-critical equipment and avoid exceeding the relay’s current and voltage limits.

## FAQ

### How much does the Relay module No name ESP12-4R-MV Wi‑Fi cost, and is it available for purchase?

The price is 18.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 57 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 14.07.2026 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. 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 No name 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 No name 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/12082552/67566637_large.webp