# W2 SA-K7 Acoustic-Optical Alarm Sounder 16-32.5V DC 100dB IP21C Red

**URL:** https://aio.lv/en/product--w2-sa-k7--12455236
**Data updated:** 2026-05-18 02:39 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** W2
**Manufacturer code:** SA-K7
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 67.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 55.78 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--w2-sa-k7--12455236

## 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

The W2 SA-K7 is a combined acoustic-optical alarm sounder designed for fire safety and emergency signaling systems. It operates on a 16-32.5V DC power supply, delivering a 100dB sound output with visual indication. Featuring an IP21C ingress protection rating, this red unit is suitable for indoor wall-mounted installations, ensuring reliable notification in commercial and industrial environments.

## Long description

The W2 SA-K7 is a high-performance acoustic-optical alarm sounder engineered for integration into fire safety and emergency notification systems. This device provides a dual-action alert mechanism, combining a powerful audible signal with a clear visual indicator to ensure maximum awareness during critical situations. Designed for reliability in commercial and industrial settings, the unit operates efficiently within a voltage range of 16-32.5V DC, making it a versatile component for modern safety infrastructure.
Advantages
The primary benefit of the W2 SA-K7 lies in its dual-signaling capability, which significantly increases the probability of alert recognition in noisy or high-traffic environments. The robust construction ensures consistent performance, while the high-intensity sound output of 100dB provides effective coverage across large areas. Its compact design and wall-mounted configuration allow for seamless installation in various architectural layouts without compromising the aesthetic integrity of the building.
Suitable for
Fire alarm systems in office buildings
Emergency signaling in industrial facilities
Safety notification in commercial warehouses
Public building evacuation systems
This device is not suitable for outdoor environments or areas exposed to high levels of moisture, dust, or extreme weather conditions, as it carries an IP21C ingress protection rating. It should also not be used in explosive atmospheres or locations requiring specialized explosion-proof equipment.
Key specifications
Operating voltage: 16-32.5V DC
Sound output: 100dB
Ingress protection: IP21C
Color: Red
Mounting type: Wall-mounted
Application: Indoor use
To install the W2 SA-K7, mount the unit securely to a flat, stable wall surface using the provided mounting points. Connect the device to a compatible fire alarm control panel or power supply unit, ensuring the voltage remains within the specified 16-32.5V DC range. Verify that the wiring is correctly terminated according to local electrical safety standards and perform a functional test to confirm both the acoustic and optical signals are operating as intended.
What to consider before purchase
Verify that the operating voltage of your existing system matches the 16-32.5V DC requirement.
Ensure the installation location is strictly indoors to comply with the IP21C rating.
Confirm that the 100dB sound level is appropriate for the intended acoustic environment.
Usage recommendations: Regularly inspect the device for any signs of physical damage or obstruction to the sounder and visual indicator. Conduct periodic maintenance tests to ensure the alarm remains fully operational and that the signal is clearly audible and visible throughout the designated coverage area.

## FAQ

### How much does the W2 SA-K7 Acoustic-Optical Alarm Sounder cost, and is it available for purchase?

The price is 67.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 47 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 W2 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 W2 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/12455236/68757563_large.webp