# Electronic environment thermometer TFA-Dostmann 30.3139 Indoor Grey F °C

**URL:** https://aio.lv/en/product--tfa-dostmann-303139--11029481
**Data updated:** 2025-12-30 15:07 (EET)
**Category:** Weather Station
**Manufacturer:** tfa dostmann
**Manufacturer code:** 30.3139
**EAN:** 4009816014597
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 13.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 11.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tfa-dostmann-303139--11029481

## 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 TFA-Dostmann 30.3139 is an electronic environment thermometer designed for indoor use. It measures temperature in both Fahrenheit and Celsius. The device is powered by a 1.5V AAA battery and features a compact design with dimensions of 61mm width, 30mm depth, and 96mm height. Ideal for monitoring indoor climate conditions.

## Long description

The TFA-Dostmann 30.3139 is an electronic indoor environment thermometer with a compact grey housing and a clear display. It measures temperature in both Celsius and Fahrenheit and is powered by two 1.5 V AAA batteries. The device is intended for indoor climate monitoring and is compatible with several instrument mounts (models 30.3033, 35.1057, 35.1058, 35.1066, 35.1071).
Advantages
The thermometer offers dual temperature units (°C and °F) for flexible use, a space-saving design (61 mm × 30 mm × 96 mm) and low weight (0.063 kg) for easy placement on shelves or walls. Battery operation ensures installation without cabling and quick setup using standard AAA cells. The clear display provides straightforward temperature readings for everyday indoor monitoring.
Suitable for
Monitoring room temperature in living rooms and bedrooms
Use in offices and workspaces to check indoor climate
Placement in nurseries or playrooms to monitor comfort
Compatibility with specified instrument mounts (30.3033, 35.1057, 35.1058, 35.1066, 35.1071)
Key specifications
Model: TFA-Dostmann 30.3139
Power: 2 × 1.5 V AAA batteries
Temperature units: °C and °F
Colour: Grey
Dimensions (W × D × H): 61 × 30 × 96 mm
Weight: 0.063 kg
EAN: 4009816014597
How to use
Insert two 1.5 V AAA batteries into the battery compartment following the polarity markings. Place the thermometer on a flat surface or attach it to a compatible mount listed in the compatibility note. Allow the device a few minutes to stabilise after placement before taking readings. Switch between Celsius and Fahrenheit if required according to the device controls.
Usage recommendations
For reliable indoor temperature monitoring, avoid placing the thermometer near direct sunlight, heating vents, or air conditioners. Replace batteries when display dims or readings become unstable, and use the compatible instrument mounts for secure installation when wall mounting is required.

## Specifications

| Feature | Value |
|---|---|
| Type | Electronic environment thermometer |
| Number of batteries supported | 2 |
| Purpose | Indoor |
| Temperature measurement range | -30 - 60 |
| Placement | Wall, Table |
| Temperature measurement range | -22 - 140 |
| Display form factor | Square |

### Power

| Feature | Value |
|---|---|
| Battery type | AAA |
| Power source | Battery |
| Battery voltage | 1.5 V |

### Display

| Feature | Value |
|---|---|
| Display type | Digital |

### Packaging content

| Feature | Value |
|---|---|
| Batteries included | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.063 kg |
| Height | 96 mm |
| Width | 61 mm |
| Depth | 30 mm |

### Features

| Feature | Value |
|---|---|
| Product colour | Grey |
| Housing material | Plastic |
| Temperature measurement units | °C, F |

## FAQ

### How much does the Electronic environment thermometer TFA-Dostmann 30.3139 cost, and is it available for purchase?

The price is 13.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, temperature measurement units, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/11029481/65634304_large.webp