# Smart switch Sonoff 4CHPROR3 Wireless 120-240V 50-60Hz

**URL:** https://aio.lv/en/product--sonoff-4chpror3--6542594
**Data updated:** 2025-12-30 06:05 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** Sonoff
**Manufacturer code:** 4CHPROR3
**EAN:** 6920075775815
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 34.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 28.92 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sonoff-4chpror3--6542594

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

The Sonoff 4CHPROR3 is a smart switch designed for wireless control of electrical devices. It operates on a frequency of 2483 MHz and supports AC input voltage of 120-240V with a frequency of 50-60Hz. Its compact dimensions of 145mm width, 90mm depth, and 34mm height make it suitable for various installations. This device enhances home automation by allowing users to control multiple devices remotely.

## Long description

The Sonoff 4CHPROR3 Wireless smart switch provides remote control for up to four electrical loads. Designed for AC 120–240V 50–60Hz installations, the compact white module (145 × 90 × 34 mm) supports three operation modes selectable via the app: self-locking, interlock and inching. It connects to a 2483 MHz network and is intended for integration with home automation setups where independent or coordinated control of multiple lights or devices is required.
Advantages
The device allows quick access to three working modes from the mobile app, enabling separate control of four outputs, coordinated on/off behavior between channels, and timed auto-off for passage lighting. It is compatible with Amazon Alexa and Google Home for voice control and features a flame-retardant PC shell for improved safety. Its compact size makes it suitable for different installation environments.
Suitable for
Controlling multiple lights in a room or floor independently
Staircase or corridor lighting with automatic timed shut-off
Scenarios where one device activation must turn others off (interlock)
Integration with voice assistants (Alexa, Google Home)
Key specifications
Model: Sonoff 4CHPROR3
AC input: 120–240 V, 50–60 Hz
Wireless frequency: 2483 MHz
Dimensions: 145 × 90 × 34 mm
Weight: 0.228 kg
Colour: White
Operation modes: Self-locking, Interlock, Inching
How to use
Install the Sonoff 4CHPROR3 according to local electrical standards, connecting each load to the respective channel output. Use the manufacturer's app to select one of the three modes: self-locking for independent on/off of each channel, interlock to have one channel turn on while others turn off, or inching to set a timed on period after which the channel switches off automatically. Link the device with your Amazon Alexa or Google Home account if voice control is required.
Usage recommendations
Verify wiring and power are turned off before installation, and use the flame-retardant enclosure as part of standard safety precautions. Configure the inching time and interlock settings in the app to match the intended use (e.g., short interval for corridor lights).

## Specifications

| Feature | Value |
|---|---|
| Type | Smart switch |
| Security algorithms | WPA, WPA2 |
| Operating relative humidity (H-H) | 5 - 95 |
| Operating temperature (T-T) | -10 - 40 |
| Connectivity technology | Wireless |
| Radio frequency | 2483 MHz |
| Suitable for indoor use | Yes |
| Sustainability compliance | Yes |
| Sustainability certificates | RoHS |

### Power

| Feature | Value |
|---|---|
| AC input frequency | 50 - 60 |
| AC input voltage | 120 - 240 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.228 kg |
| Height | 34 mm |
| Width | 145 mm |
| Depth | 90 mm |

### Design

| Feature | Value |
|---|---|
| Product colour | White |

## FAQ

### How much does the Smart switch Sonoff 4CHPROR3 cost, and is it available for purchase?

The price is 34.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 118 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 02.07.2026 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 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/6542594/59434733_large.webp