# TFA-Dostmann 30.3249.02 temperature transmitter -40 - 60 °C Indoor

**URL:** https://aio.lv/en/product--tfa-30324902--12077621
**Data updated:** 2026-03-12 21:56 (EET)
**Category:** Smart Sensors
**Manufacturer:** TFA
**Manufacturer code:** 30.3249.02
**EAN:** 4009816037077
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 12.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tfa-30324902--12077621

## 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

TFA-Dostmann 30.3249.02. Display: LED. Battery voltage: 1.5 V. Width: 45 mm, Depth: 25 mm, Height: 125 mm

## Long description

The TFA-Dostmann 30.3249.02 temperature transmitter is designed for indoor temperature monitoring within a range of -40 to 60 °C. It connects wirelessly with compatible TFA thermo-hygrometers and weather stations to provide remote temperature readings. The unit features a clear LED display and compact dimensions that allow discreet placement in rooms, cabinets or technical spaces where accurate ambient temperature measurement is required.
Advantages
This temperature transmitter offers a wide measuring range suitable for a variety of indoor environments, from cold storage to heated living areas. The LED display ensures readings are visible when accessing the sensor directly, while battery operation allows flexible placement without wiring. Its small size makes installation simple and unobtrusive, and wireless compatibility with TFA devices enables centralized monitoring and logging when paired with the appropriate receiver.
Suitable for
 Monitoring room or equipment temperature in homes and offices
 Supplementing TFA wireless thermo-hygrometers and weather stations with additional measuring points
 Temperature monitoring in storage areas, closets or small cold rooms within the specified range
 Use in technical rooms or near HVAC components to check ambient temperature
Key specifications
 Measuring range: -40 to 60 °C
 Display type: LED
 Power supply: 1.5 V battery
 Dimensions (approx.): 45 mm width × 25 mm depth × 125 mm height
 Wireless transmission compatible with TFA indoor thermo-hygrometers and weather stations
How to use
Insert a 1.5 V battery and place the transmitter in the desired indoor location, avoiding direct sunlight and sources of radiant heat for representative ambient readings. Follow the pairing procedure of your TFA thermo-hygrometer or weather station to add the transmitter as an external sensor; once paired, temperature readings from the transmitter will appear on the base unit. Position the device at a height and spot that reflect the conditions you need to monitor, and periodically check the battery status to ensure continuous operation.
Usage recommendations
For stable readings, mount the transmitter in a ventilated area away from heaters, windows and doors. Replace the battery before the transmitter’s signal weakens to maintain reliable wireless communication with your TFA device. When using multiple external sensors, label each transmitter and register them in the base unit according to the manufacturer’s instructions to avoid confusion.

## Specifications

| Feature | Value |
|---|---|
| Display | LED |
| Display included | Yes |
| Battery voltage | 1.5 V |
| Temperature measurement range | -40 - 60 |
| Placement | Table, Wall |
| Transmission distance | 100 m |

### Features

| Feature | Value |
|---|---|
| Type | Indoor |
| Connectivity technology | Wireless |
| Product colour | White |
| Operating frequency | 433 |

### Power

| Feature | Value |
|---|---|
| Number of batteries supported | 2 |

### Technical details

| Feature | Value |
|---|---|
| Sustainable technologies and materials | Plastic |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.062 kg |
| Height | 125 mm |
| Width | 45 mm |
| Depth | 25 mm |

## FAQ

### How much does the TFA-Dostmann 30.3249.02 temperature transmitter 30.3249.02 cost, and is it available for purchase?

The price is 15.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 80 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 TFA 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 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: connectivity technology, type, 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/12077621/67577330_large.webp