# Weather station Terdens 3540 with LCD display and external sensor

**URL:** https://aio.lv/en/product--terdens-3540--11872603
**Data updated:** 2026-03-09 20:36 (EET)
**Category:** Weather Station
**Manufacturer:** Terdens
**Manufacturer code:** 3540
**EAN:** 5901733003540
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 26.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 22.31 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--terdens-3540--11872603

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Terdens 3540 is a weather station featuring an LCD display and an external sensor for measuring outdoor conditions. It provides local environmental readings on a clear screen and is intended for home or small-office monitoring of temperature and basic weather parameters. Easy to place outdoors and view indoors, it suits everyday indoor/outdoor condition tracking.

## Long description

Terdens 3540 with LCD display and external sensor is a compact weather station designed for simple monitoring of indoor and outdoor conditions. The unit shows current temperature readings from both the indoor sensor and an external wireless sensor on a clear LCD panel, enabling quick checks of local environmental conditions. Intended for home and small-office use, the device combines an easy-to-read screen with a weatherproof external sensor that can be mounted outdoors for continuous measurement.
Advantages
The weather station offers straightforward measurement and display of indoor and outdoor temperatures on an LCD screen, with a wireless external sensor that transmits readings to the base unit. Its compact design and simple controls make placement and daily use uncomplicated, while the clear numeric display supports fast interpretation of data. Battery-powered operation allows flexible installation without the need for wiring.
Suitable for
Monitoring indoor and outdoor temperature in apartments and houses
Small office environmental checks
Seasonal condition tracking for gardening and balconies
Quick verification of outdoor temperature before leaving home
Key specifications
Display type: LCD
Measurements: indoor temperature and outdoor temperature via external sensor
External sensor: wireless transmission to base unit; designed for outdoor placement
Power: battery operation for both base unit and external sensor
Mounting: tabletop placement for the base unit; wall or surface mounting for the external sensor
How to use
Place the base unit indoors on a flat surface or mount it where the LCD is easily visible. Install batteries in both the base unit and the external sensor according to the product manual. Position the external sensor outdoors in a shaded, sheltered location away from direct sunlight and heavy precipitation to obtain representative temperature readings. Allow a short synchronization period for the sensor and base unit to establish a wireless connection; once synchronized, the LCD will display current indoor and outdoor temperatures. Use the device’s simple controls to switch display modes or reset readings as needed.
Usage recommendations
To ensure reliable outdoor temperature readings and extend sensor life, mount the external sensor in a covered but well-ventilated location, avoid direct exposure to rain and sun, and replace batteries periodically. Keep the indoor base unit away from heat sources and drafts for accurate indoor measurements.

## FAQ

### How much does the Terdens 3540 weather station with LCD cost, and is it available for purchase?

The price is 26.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 03.07.2026 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 Terdens 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 Terdens 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/11872603/67287470_large.webp