# Indoor electronic hygrometer/psychrometer TFA 30.5055.02 — digital display, white, 55×40×15 mm, 1.5 V battery

**URL:** https://aio.lv/en/product--tfa-30505502--12229351
**Data updated:** 2026-03-29 16:16 (EEST)
**Category:** Weather Station
**Manufacturer:** TFA
**Manufacturer code:** 30.5055.02
**EAN:** 4009816037541
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 13.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 11.56 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tfa-30505502--12229351

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

TFA 30.5055.02 is an indoor electronic hygrometer/psychrometer with a rectangular digital display for measuring relative humidity and air moisture conditions. Compact white housing (55 × 40 × 15 mm) runs on a 1.5 V battery and is supplied as a single unit. Suitable for home, office, greenhouse or storage monitoring where accurate humidity data is required.

## Long description

TFA 30.5055.02 is a compact indoor electronic hygrometer and psychrometer with a rectangular digital display designed to monitor relative humidity and temperature. Housed in a white casing measuring 55 × 40 × 15 mm and powered by a single 1.5 V battery, this device records current values and stores maximum and minimum readings for later review. It can be placed on a flat surface using the fold-out stand or attached to metal surfaces with two small magnets on the back. The climate comfort display provides an immediate visual indication of conditions using a smiling, neutral, or sad face. The device offers four selectable application modes to match common monitoring needs: room climate, musical instruments, tortoise terrariums and humidor storage.
Advantages
The hygrometer provides clear digital readout of temperature and relative humidity in a small, easy-to-position housing suitable for a variety of indoor locations. Stored maximum and minimum values are accessible with a button press, enabling monitoring of fluctuations over time. The selectable comfort-mode settings and intuitive smiley climate indicator make it simple to evaluate whether conditions fall into recommended ranges for general indoor comfort, wooden musical instruments, tortoise enclosures or cigar humidors. Battery operation and built-in magnets plus a fold-out stand offer flexible placement options without the need for permanent installation.
Suitable for
Monitoring room climate in homes and offices
Protecting and storing wooden musical instruments
Maintaining appropriate conditions in tortoise terrariums
Controlling humidity and temperature inside humidors for cigars
Monitoring small storage areas, greenhouses or cabinets
Key specifications
Measured values: relative humidity and temperature
Display: rectangular digital screen with comfort indicator
Dimensions: 55 × 40 × 15 mm
Power supply: 1.5 V battery (single cell)
Modes: selectable application modes for room climate, musical instruments, tortoise and humidor
Memory: records and displays maximum and minimum values
Mounting options: rear magnets for metal surfaces and fold-out stand for tabletop use
How to use
Insert the 1.5 V battery into the battery compartment and place the device in the desired location away from direct heat sources and strong sunlight for representative readings. Choose the appropriate application mode (room climate, musical instruments, tortoise or humidor) to align the comfort indicator with the relevant recommended ranges. Use the max/min button to view stored extreme values and monitor changes over time. Attach the hygrometer to a metal surface using the magnets or stand it upright on a flat surface with the fold-out stand. Check readings regularly and replace the battery when the display becomes dim or unresponsive.
Usage recommendations
For reliable monitoring, position the device where air circulates freely and avoid placing it directly next to radiators, ventilation outlets or humidifiers. For instruments and humidors, aim to keep conditions as stable as possible; review stored maximum and minimum values frequently to detect and correct strong fluctuations. When using the tortoise mode or storing sensitive items, verify species- or product-specific humidity and temperature requirements and adjust environmental controls accordingly.

## Specifications

| Feature | Value |
|---|---|
| Type | Electronic hygrometer |
| Number of batteries supported | 1 |
| Purpose | Indoor |
| Temperature measurement range | -10 - 60 |
| Placement | Desk, Wall |
| Display form factor | Rectangular |
| Humidity measuring range | 10 - 99 |

### Other features

| Feature | Value |
|---|---|
| Thermometer | Yes |

### Display

| Feature | Value |
|---|---|
| Display type | Digital |

### Packaging data

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

### Weight & dimensions

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

### Power

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

### Features

| Feature | Value |
|---|---|
| Product colour | White |
| Housing material | Plastic |
| Temperature measurement units | °C |

## FAQ

### How much does the TFA 30.5055.02 indoor electronic hygrometer cost, and is it available for purchase?

The price is 13.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 08.07.2026 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, 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: product colour, 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 TFA 30.5055.02 indoor electronic 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/12229351/68100221_large.webp