# Smoke Detector DAHUA HY-SA40A-R8 wireless smoke sensor HY-SA40A-R8

**URL:** https://aio.lv/en/product--dahua-hy-sa40a-r8--11850657
**Data updated:** 2026-03-09 17:26 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** DAHUA
**Manufacturer code:** HY-SA40A-R8
**EAN:** 6939554902659
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 19.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 16.11 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dahua-hy-sa40a-r8--11850657

## 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

Wireless smoke detector DAHUA HY-SA40A-R8 designed to detect smoke and provide early fire alerting. The unit is a wireless smoke sensor suitable for integration into compatible alarm systems, offering battery-powered installation and placement flexibility. Intended for residential and commercial use to monitor indoor spaces and trigger alarms when smoke is detected.

## Long description

The DAHUA HY-SA40A-R8 wireless smoke sensor is designed to detect smoke and provide early fire alerting for indoor spaces. Battery-powered and wireless, the device is intended for integration with compatible alarm control panels to expand fire detection coverage without the need for new wiring. The compact form factor and mounting options support placement in residential rooms, offices, corridors and similar indoor environments where early smoke detection is required.
Advantages
This wireless smoke detector offers flexible installation due to its battery operation and wireless communication, reducing installation time and infrastructure changes. The sensor uses optical smoke detection technology to identify visible particles associated with combustion, enabling timely alerts. Its low-profile design and standardized mounting make it suitable for unobtrusive placement on ceilings or high walls. Designed for integration, the detector communicates with compatible alarm systems to trigger centralized alarms and notifications.
Suitable for
Residential homes and apartments
Small offices and commercial premises
Corridors, storage rooms and utility spaces
Expansion of existing alarm systems where wireless sensors are required
Key specifications
Detection principle: optical smoke sensing
Power supply: user-replaceable batteries for wireless operation
Mounting: ceiling or high-wall installation
Communication: wireless radio link for integration with compatible control panels
Operating environment: indoor use, typical residential and commercial temperature and humidity ranges
Form factor: compact, low-profile housing for unobtrusive placement
How to use
Mount the detector on a ceiling or high wall in a central position of the monitored room, avoiding corners and locations close to ventilation outlets or cooking appliances that may cause false alarms. Insert and secure the batteries according to the polarity markings, then pair the sensor with the compatible alarm control panel following the panel manufacturer’s pairing procedure. After installation, perform a system test using the control panel to verify that the detector communicates correctly and triggers alarm signals when smoke is present.
Usage recommendations
Regularly test the smoke detector and replace batteries according to the manufacturer’s guidance or when low-battery indications are shown. Keep the sensing chamber free from dust and insects by performing gentle cleaning with a soft brush or vacuum nozzle at recommended intervals. Do not paint the device or block airflow to the sensing area. For reliable performance, follow the alarm system integrator’s instructions for sensor placement and maintenance.

## FAQ

### How much does the Smoke Detector DAHUA HY-SA40A-R8 cost, and is it available for purchase?

The price is 19.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 16 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. 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 DAHUA 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 DAHUA 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/11850657/67249262_large.webp