# Environmental Sensor TFA-Dostmann WeatherHub

**URL:** https://aio.lv/en/product--tfa-dostmann-31400802--3719899
**Data updated:** 2026-01-06 11:10 (EET)
**Category:** Smart Sensors
**Manufacturer:** tfa dostmann
**Manufacturer code:** 31.4008.02
**EAN:** 4009816029683
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 104.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 86.77 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tfa-dostmann-31400802--3719899

## 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 WeatherHub environmental sensor measures humidity and temperature. It features wireless technology with Wi-Fi and operates at a frequency of 868 MHz. The device can be powered by AC or AAA batteries (1.5 V). Its compact size (40 mm width, 28 mm depth, 104 mm height) makes it easy to integrate into any smart home system.

## Long description

The Environmental Sensor TFA‑Dostmann WeatherHub (COZY RADAR set) monitors indoor and outdoor temperature and relative humidity to help maintain a healthy room climate and reduce the risk of mould. The set includes a thermo‑hygrometer for indoor use, an outdoor thermo‑hygro transmitter and a WeatherHub Gateway that forwards measured values to the cloud. The WEATHERHUB app compares indoor and outdoor conditions, displays long‑term trends and provides targeted ventilation and climate control advice on your smartphone.
Advantages
The WeatherHub system records temperature and humidity simultaneously indoors and outdoors and visualises persistent trends on a long‑term radar display. The Gateway transmits measured values to the WEATHERHUB cloud so you can access data worldwide via the app. The app issues specific, actionable recommendations (ventilate, heat, dehumidify or humidify), supports up to 50 sensors and offers history graphs for the last 90 days, alert limits and push notifications.
Suitable for
Bedrooms and nurseries where stable humidity is important
Basements, pantries and storage rooms at risk of damp or mould
Homes and small smart‑home systems requiring remote climate monitoring
Users who want automated ventilation and humidity recommendations
Key specifications
Brand: tfa dostmann
Model / MPN: 31.4008.02
EAN: 4009816029683
Measurements: temperature and relative humidity (indoor and outdoor)
Connectivity: WeatherHub Gateway (Internet) and 868 MHz wireless between sensors
Power: AC or AAA batteries (1.5 V) for sensors
Dimensions (thermo‑hygrometer): approx. 40 × 28 × 104 mm
App features: long‑term radar display, 90‑day history, push alerts, configurable limits, up to 50 sensors
How to use
Install the indoor thermo‑hygrometer at the typical breathing height in the room you want to monitor and place the outdoor transmitter in a sheltered location. Connect the WeatherHub Gateway to your home network and register the devices in the WEATHERHUB app. The Gateway forwards sensor data to the cloud; the app compares indoor and outdoor readings and shows trends, alerts and concrete ventilation or heating suggestions. Replace batteries or connect AC power as required to ensure continuous operation.
Usage recommendations
Place the indoor sensor away from direct heat sources and drafts for representative readings. Follow app recommendations: ventilate when the app indicates high indoor humidity and consider heating or dehumidifying for cold, damp rooms to prevent mould. Regularly check the app’s history and set alert thresholds appropriate for the monitored room.

## Specifications

| Feature | Value |
|---|---|
| Battery voltage | 1.5 V |
| Temperature measurement range | -40 - 60 |
| Power source type | Battery, AC |
| Display type | LCD |
| Frequency | 868 MHz |
| Adapter included | Yes |
| Measuring environmental conditions | Humidity, Temperature |

### Features

| Feature | Value |
|---|---|
| Wireless technology | Wi-Fi |
| Product colour | White |
| Maximum operating distance | 200 m |
| Compatible products | TFA-Dostmann WeatherHub |
| Housing material | Plastic |
| Built-in display | Yes |

### Power

| Feature | Value |
|---|---|
| Battery type | AAA |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.62 kg |
| Height | 104 mm |
| Width | 40 mm |
| Depth | 28 mm |

### Packaging content

| Feature | Value |
|---|---|
| Manual | Yes |

## FAQ

### How much does the Environmental Sensor TFA-Dostmann WeatherHub cost, and is it available for purchase?

The price is 104.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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

### Where can I download the instructions for Environmental Sensor TFA-Dostmann WeatherHub?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/3719899/64226016_large.webp