# Liquid environment thermometer TFA-Dostmann 12.3040.20 Indoor/outdoor 0-50°C

**URL:** https://aio.lv/en/product--tfa-dostmann-12304020--10779851
**Data updated:** 2026-01-06 11:18 (EET)
**Category:** Home Goods Accessories
**Manufacturer:** tfa dostmann
**Manufacturer code:** 12.3040.20
**EAN:** 4009816324306
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 25.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 21.48 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tfa-dostmann-12304020--10779851

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

The TFA-Dostmann 12.3040.20 is a liquid environment thermometer designed for both indoor and outdoor use. It accurately measures temperatures from 0 to 50 °C with a precision of ±1 °C. Its compact size of 92 mm width, 11 mm depth, and 500 mm height ensures easy installation and readability.

## Long description

The TFA-Dostmann 12.3040.20 liquid environment thermometer measures temperatures from 0 to 50 °C and is suitable for both indoor and outdoor use. The thermometer features a decorative printed design with trailing flowers, birds and butterflies on a large plastic housing. It is manufactured in Germany and offers a two-point adjustment for improved accuracy; the capillaries are filled with a specially coloured liquid (mercury-free).
Advantages
This liquid environment thermometer provides clear readings across a 0–50 °C range with an accuracy of ±1 °C. Its compact dimensions (92 mm width, 11 mm depth, 500 mm height) allow easy installation and good readability. The mercury-free coloured liquid and two-point calibration ensure safe handling and reliable measurement performance. The decorative print makes it suitable for visible locations in the home or garden.
Suitable for
Monitoring indoor room temperature in living areas
Checking outdoor temperature on balconies, terraces or garden walls
Use in leisure areas and workshops where a simple ambient temperature indication is required
Key specifications
Model: TFA-Dostmann 12.3040.20
Measuring range: 0 to 50 °C
Accuracy: ±1 °C
Dimensions: 92 × 11 × 500 mm (W × D × H)
Material: plastic housing with printed design
Liquid-filled capillaries, mercury-free
Manufactured in Germany
How to use
Mount the thermometer on a vertical surface indoors or outdoors at eye level for easy reading, avoiding direct sunlight or heat sources that could affect the measurement. Use the two-point adjustment to calibrate the instrument if necessary, following the manufacturer's instructions. Read the temperature directly from the scale displayed on the housing.
Usage recommendations
Place the thermometer in a sheltered outdoor location to prevent precipitation and direct sun exposure for more representative outdoor readings. For indoor energy savings, reduce room temperature by one degree to save on heating costs, and check the thermometer periodically to ensure correct calibration.

## Specifications

| Feature | Value |
|---|---|
| Type | Liquid environment thermometer |
| Weight | 0.145 kg |
| Height | 500 mm |
| Width | 92 mm |
| Depth | 11 mm |
| Product colour | White |
| Purpose | Indoor/outdoor |
| Housing material | Plastic |
| Accuracy | 1 °C |
| Temperature measurement range | 0 - 50 |
| Placement | Wall |
| Temperature measurement units | °C |
| Weatherproof | Yes |

## FAQ

### How much does the Liquid environment thermometer TFA-Dostmann 12.3040.20 cost, and is it available for purchase?

The price is 25.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 78 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 15.07.2026 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. 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 tfa dostmann 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 tfa dostmann 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/10779851/60054679_large.webp