# Smoke and Carbon Monoxide Detector Meross CS11-EU — Wi‑Fi, Battery‑Operated, Combined Smoke/CO Sensing

**URL:** https://aio.lv/en/product--meross-cs11-eu--11518196
**Data updated:** 2026-01-07 17:16 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** Meross
**Manufacturer code:** CS11-EU
**EAN:** 6942349209185
**Warranty:** 1 Year
**Availability:** Available for order
**Price:** 27.49 €
**Prices and availability valid until:** 2026-07-10 23:59
**Price without VAT (21%):** 22.72 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--meross-cs11-eu--11518196

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.06.2026 | free |
| Pickup points | 02.07.2026 | 1.99 EUR |
| Courier delivery to door | 02.07.2026 | 4.99 EUR |

## Summary description

The Meross CS11-EU is a combined smoke and carbon monoxide detector with Wi‑Fi connectivity and battery power. It provides dual sensing for both smoke and CO in a single unit, enabling early warning of fire and toxic gas. Designed for home and apartment use, it offers remote notifications over Wi‑Fi and easy installation without hardwiring, improving safety and peace of mind.

## Long description

Meross CS11-EU is a compact combined smoke and carbon monoxide detector with built-in Wi‑Fi and a long‑life CR123A battery. The device integrates a photoelectric smoke sensor and an electrochemical CO sensor to detect both fire and dangerous levels of carbon monoxide in homes and apartments. Designed for simple, cable‑free installation, the detector provides audible alerts, status LEDs, and remote notifications over Wi‑Fi.
Advantages
The Meross CS11-EU meets EN14604 and EN50291 standards and delivers fast, reliable detection: it sounds an alarm in under 3 minutes at 300 ppm CO and produces a loud alert above 85 dB. Dual sensors reduce false alarms by distinguishing fast and slow‑burning fires and prioritizing smoke alerts before CO when both are present. The replaceable mounting bracket and long‑life 3V CR123A battery (up to about 10 years) enable quick installation without professional wiring. A three‑color LED and a single button make status checks, testing and muting simple.
Suitable for
Homes and apartments
Bedrooms and living rooms
Kitchens (installed at recommended distances from cooking appliances)
Garages and utility rooms where CO exposure risk exists
Key specifications
Manufacturer: Meross
Model: CS11‑EU
Certifications: EN14604:2005/AC:2008, EN50291‑1:2018
Smoke sensor: photoelectric (sensitivity 0.09–0.17 dB/m)
CO sensor: electrochemical (50 ppm: 60–90 min; 100 ppm: 10–40 min; 300 ppm: \<3 min)
Power: CR123A 3 V lithium battery (1600 mAh, non‑replaceable)
Standby current \<30 μA; alarm current \<70 mA
Alarm volume: ≥85 dB(A) at 3 m
Low battery threshold: 2.6 ± 0.1 V
Mute time: approx. 10 min
Operating temperature: −10 °C to 40 °C
Operating humidity: 15–95% RH (no condensation)
How to use
Attach the supplied mounting bracket to the ceiling or wall using the included screws, then place the detector into the bracket until it clicks. Power is provided by the preinstalled CR123A battery; no wiring is required. Use the single button to perform a test or to silence the alarm temporarily. The three‑color LED indicates device status: green for normal operation, amber for low battery or fault, and red for alarm or test mode. For Wi‑Fi features and remote notifications, follow the instructions in the user manual to connect the detector to the Meross app.
Usage recommendations
Install detectors on ceilings or high on walls, following local guidelines for spacing and placement away from drafts, vents and direct cooking fumes. Test the unit after installation and check the LED status periodically. Replace the device according to the manufacturer’s lifetime guidance and follow local regulations for placement in sleeping areas and garages.

## FAQ

### How much does the Meross CS11-EU Smoke & CO Detector cost, and is it available for purchase?

The price is 27.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 231 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 29.06.2026 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 Meross 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 Meross 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/11518196/66534616_large.webp