# TFA-Dostmann Weather Boy Black LCD Battery Indoor Outdoor Thermometer Hygrometer

**URL:** https://aio.lv/en/product--tfa-dostmann-35010832--11445081
**Data updated:** 2026-01-21 13:40 (EET)
**Category:** Home Goods Accessories
**Manufacturer:** tfa dostmann
**Manufacturer code:** 35.010832
**EAN:** 4009816036001
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 65.99 €
**Prices and availability valid until:** 2026-08-07 23:59
**Price without VAT (21%):** 54.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tfa-dostmann-35010832--11445081

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.08.2026 | free |
| Pickup points | 11.08.2026 | 1.89 EUR |
| Courier delivery to door | 11.08.2026 | 4.99 EUR |

## Summary description

The TFA-Dostmann Weather Boy is a versatile weather station featuring an indoor hygrometer, indoor thermometer, and outdoor thermometer. It has a sleek black plastic housing and an easy-to-read LCD display. Powered by AA batteries, it offers wireless connectivity at a transmission frequency of 0.433 GHz. Its compact dimensions make it suitable for any space.

## Long description

The TFA-Dostmann Weather Boy Black is a wireless weather station with an integrated indoor hygrometer and indoor thermometer plus an outdoor temperature transmitter. The device displays local weather symbols derived from an electronic barometer, shows indoor temperature and humidity with comfort zone indicators, and reports sunrise/sunset times with day length and the current moon phase. Time, date and weekday are updated by radio signal, and the unit can function as a radio-controlled alarm clock with adjustable snooze. The outdoor temperature transmitter is included and the system can be expanded to accept up to three transmitters.
Advantages
The Weather Boy combines outdoor and indoor measurements in a compact black housing with a clear LCD display. It provides clothing suggestions linked to measured outdoor temperature, records maximum and minimum values for indoor humidity and temperatures as well as outdoor temperature, and offers a 10-second bluish backlight activated via a touch sensor for night reading. Wireless transmission at the specified frequency enables flexible placement of the outdoor sensor.
Suitable for
 Home monitoring of indoor climate (temperature and humidity)
 Checking outdoor temperature at the entrance, balcony or garden
 Users who want daily clothing hints based on local temperature
 Using as a radio-controlled alarm clock with weather display
Key specifications
 Display: LCD with bluish backlight (10 s, touch-activated)
 Measurements: indoor temperature, indoor humidity, outdoor temperature
 Weather sensing: electronic barometer for pressure trend and weather symbol
 Additional displays: sunrise and sunset times, day length, moon phase
 Memory: max/min values for indoor humidity, indoor temperature and outdoor temperature
 Radio time update and alarm clock with adjustable snooze
 Wireless outdoor transmitter included; expandable to up to three transmitters
 Power: battery-operated (AA batteries)
 Housing: black plastic, compact dimensions
How to use
Place the main unit indoors where it is easily visible and insert the required batteries. Install the outdoor temperature transmitter at a sheltered outdoor location and pair it with the main unit following the manufacturer's pairing procedure. The station will automatically receive radio time updates; set the alarm and snooze as needed. Use the touch sensor to activate the backlight briefly for nighttime readability. Consult the included manual for detailed battery replacement and transmitter mounting instructions.
Usage recommendations
Install the outdoor transmitter in a shaded, ventilated position away from direct sunlight and heavy rain to ensure accurate temperature readings. Replace batteries before low-battery warnings affect transmitter communication or display clarity.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.189 kg |
| Battery type | AA |
| Power source | Battery |
| Height | 97 mm |
| Width | 145 mm |
| Depth | 39 mm |
| Connectivity technology | Wireless |
| Backlight display | Yes |
| Product colour | Black |
| Snooze function | Yes |
| Manual | Yes |
| Battery voltage | 1.5 V |
| Housing material | Plastic |
| Temperature measurement range (inside) (T-T) | -9.9 - 50 |
| Temperature measurement range (inside) (T-T) | 14.2 - 122 |
| Temperature measurement range (outside) (T-T) | -25 - 60 |
| Temperature measurement range (outside) (T-T) | -13 - 140 |
| Number of batteries (sensor) | 2 |
| Number of batteries (receiver) | 2 |
| Number of sensors supported (max) | 3 |
| Alarm function | Yes |
| Clock function | Yes |
| Built-in display | Yes |
| Temperature measurement units | F, °C |
| Display type | LCD |
| Measuring functions | Indoor hygrometer, Indoor thermometer, Outdoor thermometer |
| Weather forecast | Yes |
| Moon phase | Yes |
| Sunrise/sunset time | Yes |
| Week day indication | Yes |
| Humidity measuring range (inside) (H-H) | 20 - 95 |
| Transmission frequency | 0.433 GHz |
| Battery included | No |
| Outdoor sensor | Yes |
| Number of outdoor sensor | 1 |

## FAQ

### How much does the TFA-Dostmann Weather Boy Thermometer Hygrometer cost, and is it available for purchase?

The price is 65.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 06.08.2026 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 TFA-Dostmann Weather Boy Thermometer Hygrometer?

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/11445081/66154539_large.webp