# Carbon monoxide sensor CO detector QOLTEC EB503554399 — 85 dB alarm, LED indicators, certified

**URL:** https://aio.lv/en/product--qoltec-eb503554399--12247723
**Data updated:** 2026-04-03 16:35 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** QOLTEC
**Manufacturer code:** EB503554399#
**EAN:** 310000240972
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 24.82 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 20.51 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--qoltec-eb503554399--12247723

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 19.06.2026 | free |
| Pickup points | 26.06.2026 | 1.99 EUR |
| Courier delivery to door | 26.06.2026 | 4.99 EUR |

## Summary description

Certified carbon monoxide (CO) sensor and detector by QOLTEC, model EB503554399. Equipped with an 85 dB audible alarm and LED indicators to signal CO presence. Designed to detect hazardous CO levels and alert occupants in homes or small commercial spaces. Useful for early warning near boilers, gas appliances, garages and sleeping areas. Provides continuous monitoring and clear visual and audible alerts.

## Long description

QOLTEC carbon monoxide sensor EB503554399 is a certified CO detector designed for continuous monitoring of indoor air to identify dangerous concentrations of carbon monoxide. The device combines an electrochemical sensing element with visual LED indicators and an 85 dB audible alarm to ensure timely notification when CO levels rise. Compact and intended for domestic and small commercial environments, the detector assists in early warning near boilers, gas appliances, garages and sleeping areas.
Advantages
The detector provides reliable CO detection using a sensor technology that responds to low and elevated carbon monoxide concentrations. LED indicators offer clear visual status feedback for normal operation, fault conditions and alarm states, while the 85 dB alarm delivers an audible alert loud enough to wake occupants. The unit is certified for safety and performance, designed for straightforward installation and continuous operation with minimal maintenance.
Suitable for
 Homes and apartments — monitoring sleeping areas and living spaces
 Boiler rooms and areas near gas-fired appliances
 Garages and workshops where combustion engines run
 Small commercial premises such as offices, retail or service rooms
Key specifications
 Detection target: carbon monoxide (CO)
 Audible alarm level: 85 dB
 Visual indicators: multi-color LEDs for status and alarm
 Sensor type: electrochemical CO sensor (certified performance)
 Operation: continuous monitoring with automatic alarm
 Typical mounting: wall or ceiling installation in indoor spaces
How to use
Mount the detector according to manufacturer spacing recommendations, typically on a wall at breathing height or on a ceiling in the central part of the room. Ensure it is placed away from direct drafts, vents and areas of excessive moisture or dust. Power the unit as specified by the manufacturer and perform the initial functional check to confirm LED status indicators and the audible alarm work properly. Regularly test the device using the built-in test function and replace or service the sensor when indicated by the unit or according to the maintenance schedule.
Usage recommendations
Install one detector on every level of a building and at least one near sleeping areas. Avoid placing the detector directly above fuel-burning appliances or in very humid locations. If the alarm sounds, ventilate the area immediately, evacuate occupants, and seek fresh air; contact emergency services if symptoms of CO poisoning are present.

## FAQ

### How much does the Carbon monoxide sensor CO detector cost, and is it available for purchase?

The price is 24.82 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 19.06.2026 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 QOLTEC 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 QOLTEC 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/12247723/68151540_large.webp