# Environmental sensor Merten 536400 — ambient temperature sensor, grey, AC 230 V

**URL:** https://aio.lv/en/product--merten-536400--3505627
**Data updated:** 2026-02-12 09:54 (EET)
**Category:** Smart Sensors
**Manufacturer:** merten
**Manufacturer code:** 536400
**EAN:** 4011281634101
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 87.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 72.72 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--merten-536400--3505627

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

Merten 536400 is a smart home environmental sensor designed to measure ambient temperature. It features a grey housing and is powered from AC mains (input 230 V). Intended for building automation and smart-home systems, it provides reliable temperature monitoring for climate control, HVAC integration, and automated comfort or energy-saving functions.

## Long description

The Merten 536400 environmental sensor is an ambient temperature sensor designed for building automation and smart-home systems. Housed in a grey enclosure and powered from AC mains (230 V), the device provides continuous temperature measurement for integration with climate control and HVAC systems. It is intended to deliver reliable ambient readings for automated comfort management and energy-saving functions in residential and commercial installations.
Advantages
The sensor offers stable ambient temperature measurement with mains-powered operation that avoids battery maintenance and supports continuous use. Its neutral grey housing is suitable for a range of interior styles and installation environments. Designed for compatibility with building automation systems, the sensor enables centralized monitoring and straightforward HVAC integration to support temperature-based automation routines.
Suitable for
Temperature monitoring in residential rooms and common areas
Integration with HVAC systems for climate control
Smart-home automation scenes that require ambient temperature input
Commercial spaces where continuous mains-powered sensing is needed
Key specifications
Measured parameter: ambient temperature
Power supply: AC 230 V mains
Housing colour: grey
Mounting type: fixed installation for interior environments
Intended application: building automation and smart-home systems
How to use
Mount the environmental sensor at a representative location away from direct heat sources, drafts and sunlight to ensure accurate ambient measurements. Connect the device to the AC 230 V mains following local electrical regulations and the system wiring diagram provided by your building automation or smart-home controller. After electrical connection, register or configure the sensor within the automation system so temperature readings are available for HVAC control, setpoint adjustments and automation rules.
Usage recommendations
For stable and accurate performance, position the sensor at chest height in the centre of the room where air circulation is typical; avoid installation near radiators, ventilation outlets or exterior walls. Periodic visual checks and adherence to installation guidelines in the system documentation will help maintain reliable operation.

## Specifications

| Feature | Value |
|---|---|
| Input voltage | 230 |
| Power source type | AC |
| Measuring environmental conditions | Temperature |

### Features

| Feature | Value |
|---|---|
| Product colour | Grey |

## FAQ

### How much does the Environmental sensor Merten 536400 cost, and is it available for purchase?

The price is 87.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 15 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 08.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Environmental sensor Merten 536400 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 merten 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 merten 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/3505627/58423677_large.webp