# Meross MS405-EU Smart Water Leak Sensor

**URL:** https://aio.lv/en/product--meross-ms405-eu--12513196
**Data updated:** 2026-06-10 09:24 (EEST)
**Category:** Smart Sensors
**Manufacturer:** Meross
**Manufacturer code:** MS405-EU
**EAN:** 6942349202094
**Warranty:** 1 Year
**Availability:** Available for order
**Price:** 17.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 14.87 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--meross-ms405-eu--12513196

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.99 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

The Meross MS405-EU is a smart water leak sensor designed for home security and flood prevention. This device detects water leaks in real-time and sends instant alerts to your smartphone, helping to prevent potential water damage. It is easy to install and integrates seamlessly into your smart home ecosystem, providing reliable monitoring for bathrooms, kitchens, basements, and laundry rooms.

## Long description

The Meross MS405-EU Smart Water Leak Sensor is a reliable solution designed to protect your home from water damage by providing real-time monitoring and instant alerts. This compact device is engineered to detect moisture and leaks early, allowing you to take immediate action before minor issues escalate into costly repairs. By integrating into your smart home ecosystem, it ensures you stay informed about the status of your plumbing and appliances, whether you are at home or away.
Advantages
This sensor offers a dual-detection system with probes on both the top and bottom, ensuring it captures leaks from dripping pipes or pooling water on the floor with high sensitivity. It features a powerful 100 dB built-in alarm that provides an immediate audible warning, while the smart connectivity ensures you receive push notifications directly to your smartphone. The device is built to last with an IP66 rating, making it resistant to dust and water, and it is powered by long-lasting batteries that provide up to three years of operation. Its compact and wireless design allows for discreet placement in tight spaces, and it integrates seamlessly with major smart home platforms for centralized control and automation.
Suitable for
Monitoring under kitchen and bathroom sinks
Detecting leaks near washing machines and dishwashers
Protecting basement areas prone to flooding
Monitoring water heaters and utility rooms
This sensor may not be suitable for outdoor environments exposed to extreme weather conditions beyond its specified operating temperature range. It is also not intended for use in areas with high levels of steam or condensation that could trigger false alarms, and it requires a dedicated Meross hub to function within a smart home network.
Key specifications
Alarm volume: 100 dB
Protection rating: IP66 (dust and water resistant)
Power supply: 2 x AAA batteries
Dimensions: 63 x 63 x 27 mm
Connectivity: 433 MHz to hub, Wi-Fi 2.4 GHz hub support
Compatibility: Apple Home, Google Home, Amazon Alexa, Samsung SmartThings
How to use
To begin using the sensor, first ensure your Meross hub is properly connected to your home Wi-Fi network. Insert the provided batteries into the sensor unit. Use the Meross mobile app to pair the sensor with the hub by following the on-screen instructions. Once paired, place the sensor in a location where water leaks are most likely to occur, such as on the floor near a water source. Ensure the detection probes are in contact with the surface where water might accumulate.
What to consider before purchase
A Meross hub is required for the sensor to operate and connect to your smart home system.
Check that your home Wi-Fi network operates on the 2.4 GHz frequency.
Ensure your smartphone meets the minimum operating system requirements (iOS 13 or Android 8.0).
Verify that the installation area is within the recommended operating temperature range of 0°C to 40°C.
Usage recommendations
Regularly test the sensor by placing it on a damp cloth to ensure the alarm and app notifications are functioning correctly. Check the battery levels periodically via the app to maintain continuous protection.

## FAQ

### How much does the Meross MS405-EU Smart Water Leak Sensor cost, and is it available for purchase?

The price is 17.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 320 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 30.06.2026 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

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