# Indoor Temperature & Humidity Sensor TFA-Dostmann 30.5055.02 Freestanding Wireless

**URL:** https://aio.lv/en/product--tfa-dostmann-30505502--6025651
**Data updated:** 2025-12-30 06:02 (EET)
**Category:** Weather Station
**Manufacturer:** tfa dostmann
**Manufacturer code:** 30.5055.02
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 8.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tfa-dostmann-30505502--6025651

## 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

The TFA-Dostmann 30.5055.02 is a freestanding indoor temperature and humidity sensor designed for accurate monitoring. It operates on a 1.5 V battery and features a compact size of 55 mm width, 15 mm depth, and 40 mm height, making it easy to place in various indoor environments.

## Long description

The TFA-Dostmann 30.5055.02 indoor temperature & humidity sensor is a compact, freestanding device for monitoring room climate. It shows current temperature and relative humidity, stores maximum and minimum values for later review, and offers a climate comfort display that classifies conditions with a smiling, neutral or sad face. The unit can be placed on a flat surface using its fold-out stand or attached to metal surfaces with two small rear magnets. Four selectable application modes—room climate, musical instruments, tortoise and humidor—allow quick selection of the appropriate reference range for each use case.
Advantages
The sensor is small and battery-powered (1.5 V), making it easy to position anywhere indoors. It records and displays maximum and minimum readings at the push of a button and provides a clear visual comfort indicator for immediate assessment. The two magnets and fold-out stand offer flexible mounting options, while the four predefined application modes simplify monitoring for specific needs such as instruments, pets or cigar storage.
Suitable for
Monitoring general indoor climate in living rooms, bedrooms and offices
Protecting wooden musical instruments (pianos, violins, guitars) from harmful humidity fluctuations
Maintaining appropriate terrarium conditions for tortoises (activity phase)
Controlling humidity and temperature in humidors for cigar storage
Key specifications
Model: TFA-Dostmann 30.5055.02
Power supply: 1.5 V battery
Form factor: freestanding with fold-out stand; two rear magnets for metal surfaces
Measurements displayed: temperature (°C) and relative humidity (%)
Functions: current reading, max/min memory and recall, climate comfort indicator, four application modes
Dimensions (approx.): 55 mm × 15 mm × 40 mm
How to use
Insert a 1.5 V battery, place the device on a flat surface or attach it to a metal surface using the rear magnets, and select the desired application mode (room climate, musical instruments, tortoise or humidor). Read the current temperature and relative humidity directly from the display. Press the button to view stored maximum and minimum values. Use the climate comfort icon to quickly assess whether conditions are within the recommended range for the selected mode.
Usage recommendations
For room climate monitoring, aim for 19–25 °C and 40–60% relative humidity. For many wooden musical instruments, 18–24 °C and 45–55% RH are advisable and conditions should remain as stable as possible. For European tortoises during their activity phase, 25–32 °C and 45–65% RH are typical; check species-specific needs. For cigar humidors, 18–22 °C and 65–75% RH help preserve aroma and storage life.

## Specifications

| Feature | Value |
|---|---|
| Type | Freestanding |
| Material | Plastic |
| Number of batteries supported | 1 |
| Sensor type | Temperature & humidity sensor |
| Purpose | Indoor |
| Temperature measuring range | -10 - 60 |
| Humidity measuring range | 10 - 99 |

### Power

| Feature | Value |
|---|---|
| Battery voltage | 1.5 V |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 40 mm |
| Width | 55 mm |
| Depth | 15 mm |

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wireless |

### Features

| Feature | Value |
|---|---|
| Temperature measurement units | °C |

## FAQ

### How much does the Indoor Temperature & Humidity Sensor TFA-Dostmann 30.5055.02 cost, and is it available for purchase?

The price is 10.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 40 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 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: 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.

### Where can I download the instructions for Indoor Temperature & Humidity Sensor TFA-Dostmann 30.5055.02?

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/6025651/65634135_large.webp