# TFA-Dostmann 35.1142 Black LCD Battery Indoor Outdoor Thermometer Hygrometer

**URL:** https://aio.lv/en/product--tfa-dostmann-35114201--11029294
**Data updated:** 2025-12-30 15:07 (EET)
**Category:** Weather Station
**Manufacturer:** tfa dostmann
**Manufacturer code:** 35.1142.01
**EAN:** 4009816029546
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 41.49 €
**Prices and availability valid until:** 2026-07-10 23:59
**Price without VAT (21%):** 34.29 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tfa-dostmann-35114201--11029294

## 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 35.1142 is a versatile black LCD battery-powered thermometer and hygrometer. It measures indoor and outdoor temperature and humidity, featuring a trend display for barometric pressure. With wireless connectivity at 0.433 GHz, it operates on AAA batteries. Its compact design (131mm x 102mm x 26mm) makes it suitable for various settings.

## Long description

The TFA-Dostmann 35.1142 Black LCD is a battery-powered indoor/outdoor thermometer and hygrometer that monitors temperature and humidity at up to four measuring points simultaneously. The compact device shows time, date and day of week via radio signal, stores maximum and minimum values and indicates trends for measured parameters. An integrated electronic barometer displays local air pressure and provides a simple weather forecast symbol based on pressure changes.
Advantages
This black LCD unit measures temperature and humidity for the main location plus three additional wireless sensors or outdoor readings, helping to compare climate conditions across rooms or between indoors and outdoors. Trend arrows and stored max/min values make it easy to observe changes over time. The built-in barometer and weather symbol offer a quick forecast, while radio-controlled time and alarm increase convenience. Compact dimensions and battery operation allow flexible placement.
Suitable for
 Monitoring indoor climate in living room, bedroom or children's room
 Comparing conditions between basement, conservatory and main rooms
 Keeping track of outdoor temperature and humidity near the house
 Use where a compact battery-powered weather station is required
Key specifications
 Brand: tfa dostmann, model: 35.1142.01
 Temperature range (inside): -10 °C to 60 °C; (outside): -40 °C to 60 °C
 Humidity measuring range (outside): 1% to 99% RH
 Display: Black LCD, built-in
 Clock and alarm: radio-controlled time, alarm function included
 Power: AAA batteries (battery-powered)
 Frequency (wireless): 0.433 GHz
 Units: °C and °F selectable
 Dimensions: 131 mm x 102 mm x 26 mm; Weight: 0.154 kg
How to use
Place the main unit indoors on a flat surface or mount it as required and insert the AAA batteries. If using additional wireless sensors or an outdoor sensor, install batteries in each sensor and follow pairing instructions to register up to three external measuring points. The unit automatically receives radio-controlled time and updates date and day. Read temperature, humidity, trend arrows and stored max/min values on the LCD; consult the weather symbol for a simple forecast based on barometric pressure changes.
Usage recommendations
For a healthy indoor climate aim for 18–22 °C and relative humidity between 40% and 60%. Position outdoor sensors away from direct sunlight and sheltered from heavy rain for accurate readings; avoid placing indoor sensors close to heat sources or drafts.

## Specifications

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wireless |
| Transmission frequency | 0.433 GHz |

### Display

| Feature | Value |
|---|---|
| Built-in display | Yes |
| Display type | LCD |

### Features

| Feature | Value |
|---|---|
| Product colour | Black |
| Housing material | Plastic |
| Temperature measurement range (inside) (T-T) | -10 - 60 |
| Temperature measurement range (inside) (T-T) | 14 - 140 |
| Temperature measurement range (outside) (T-T) | -40 - 60 |
| Temperature measurement range (outside) (T-T) | -40 - 140 |
| Humidity measuring range (outside) (H-H) | 1 - 99 |
| Alarm function | Yes |
| Clock function | Yes |
| Temperature measurement units | F, °C |
| Measuring functions | Indoor thermometer, Outdoor hygrometer, Outdoor thermometer, Indoor hygrometer |
| Weather forecast | Yes |
| Outdoor sensors range | 60 m |
| Measuring functions trend display | Barometer |
| Humidity measuring range (inside) (H-H) | 20 - 95 |

### Power

| Feature | Value |
|---|---|
| Battery type | AAA |
| Power source | Battery |
| Battery voltage | 1.5 V |
| Number of batteries (sensor) | 2 |
| Number of batteries (receiver) | 2 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.154 kg |
| Height | 102 mm |
| Width | 131 mm |
| Depth | 26 mm |

### Packaging data

| Feature | Value |
|---|---|
| Battery included | No |
| Outdoor sensor | Yes |
| Number of outdoor sensor | 3 |

## FAQ

### How much does the TFA-Dostmann 35.1142 Black LCD Battery cost, and is it available for purchase?

The price is 41.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 12 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: humidity measuring range (outside) (h-h), temperature measurement range (inside) (t-t), temperature measurement range (outside) (t-t), weight, clock function, alarm function, built-in display, temperature measurement units, product colour, 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.

### Where can I download the instructions for TFA-Dostmann 35.1142 Black LCD Battery?

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/11029294/65634259_large.webp