# Door/Window Sensor Sonoff DW2 RF433 — wireless magnetic sensor, RF433 MHz, battery-powered

**URL:** https://aio.lv/en/product--sonoff-m0802070003--10974373
**Data updated:** 2026-03-07 18:11 (EET)
**Category:** Smart Sensors
**Manufacturer:** Sonoff
**Manufacturer code:** M0802070003
**EAN:** 6920075776089
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 8.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sonoff-m0802070003--10974373

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Sonoff DW2 RF433 is a wireless door/window magnetic sensor that operates on the RF433 MHz band and is battery-powered. It detects opening and closing of doors or windows and transmits status changes to compatible RF433 controllers or alarm panels. Ideal for basic security monitoring, entry notifications, and integration with RF-based home alarm systems.

## Long description

Sonoff DW2 RF433 is a wireless magnetic door and window sensor that communicates over the RF433 MHz band and is powered by an internal battery. The sensor detects the relative position of a magnet and reports open/close events to compatible RF433 controllers, alarm panels or receivers. Its compact design and straightforward RF output make it suitable for adding basic intrusion detection and entry notifications to RF-based security and automation systems.
Advantages
The device provides contactless magnetic detection without wiring and uses RF433 communication for broad compatibility with many legacy and third-party receivers. Battery operation allows installation on doors, windows and other movable panels where running cables would be impractical. The small housing and simple two-part magnet-and-switch layout support discreet placement while maintaining clear open/close signalling.
Suitable for
Basic home security and perimeter monitoring
Entry/exit notifications for doors and windows
Integration with RF433 alarm panels and controllers
Temporary installations where wireless sensors are preferred
Key specifications
Wireless frequency: 433 MHz RF band
Detection type: magnetic contact (reed switch)
Power source: internal battery (battery-powered)
Transmission: wireless open/close status reports
Mounting: surface mount for doors, windows or frames
Physical: compact two-piece sensor and magnet assembly
How to use
Mount the sensor body on the stationary frame and align the magnet on the moving sash or door so that both parts are adjacent when closed. Ensure the gap between the sensor and magnet matches the manufacturer’s recommended separation for reliable detection. Pair the sensor with an RF433-compatible receiver or alarm panel following the receiver’s learning procedure so it recognises the sensor’s open/close signals. Replace the battery when the receiver or a connected system indicates low battery status.
Usage recommendations
Install the sensor on clean, dry surfaces and avoid metal obstructions between the sensor and magnet that could affect magnetic operation or RF transmission. For best results, test the sensor after mounting to confirm correct alignment and reliable communication with your RF433 controller or panel.

## FAQ

### How much does the Sonoff DW2 RF433 door/window sensor cost, and is it available for purchase?

The price is 9.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 06.07.2026 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

## Image

https://aio.lv/img/cache/product/10974373/68517095_large.webp