# Temperature/Humidity Sensor TFA-Dostmann 30.3301.02

**URL:** https://aio.lv/en/product--tfa-dostmann-30330102--627750
**Data updated:** 2025-12-28 21:31 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** tfa dostmann
**Manufacturer code:** 30.3301.02
**EAN:** 4009816027191
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 20.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 17.35 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tfa-dostmann-30330102--627750

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The TFA-Dostmann 30.3301.02 is a freestanding wireless temperature and humidity sensor. It operates on AAA alkaline batteries (1.5 V) and features compact dimensions of 39 mm width, 33 mm depth, and 92 mm height. Certified with CE, this sensor provides accurate readings for indoor environments, making it ideal for monitoring comfort levels in homes and offices.

## Long description

The TFA-Dostmann 30.3301.02 is a freestanding wireless temperature and humidity sensor designed for use with the WeatherHub gateway (sold separately). It runs on a single AAA 1.5 V alkaline battery, is CE certified and has compact dimensions (39 x 33 x 92 mm). The sensor transmits measured values at 868 MHz and stores up to 90 days of data for remote review on a smartphone.
Advantages
This wireless temperature/humidity sensor provides continuous monitoring of indoor conditions with adjustable alarm limits and push notifications to your smartphone when thresholds are exceeded. Its compact, battery-powered design allows flexible placement in refrigerators, freezers, aquariums, pools or ponds (for ambient monitoring), homes and offices. Data memory for up to 90 days and 868 MHz transmission ensure reliable recording and remote access when paired with the WeatherHub gateway.
Suitable for
 Monitoring refrigerator and freezer temperature
 Tracking room humidity and temperature in homes and offices
 Environmental monitoring for aquariums and garden ponds (ambient measurements)
 Remote condition checks via smartphone when connected to WeatherHub
Key specifications
 Model: TFA-Dostmann 30.3301.02
 Functions: wireless temperature and humidity measurement
 Power supply: 1 × AAA alkaline battery (1.5 V)
 Transmission frequency: 868 MHz
 Data memory: up to 90 days
 Dimensions (W × D × H): 39 × 33 × 92 mm
 Certifications: CE
 Requires: WeatherHub gateway (sold separately)
How to use
Insert one AAA 1.5 V alkaline battery, place the sensor in the desired location and pair it with the WeatherHub gateway following the gateway’s pairing instructions. Configure alarm limits and push notification settings in the WeatherHub app on your smartphone. The sensor will transmit temperature and humidity readings at 868 MHz and store up to 90 days of measurements for later review in the app.
Usage recommendations
Place the sensor away from direct heat sources or drafts for accurate ambient readings. For monitoring inside refrigerators or freezers, position the sensor where it will not contact moisture directly. Ensure the WeatherHub gateway is within radio range and replace the AAA battery when battery status in the app indicates low power.

## Specifications

| Feature | Value |
|---|---|
| Type | Freestanding |
| Weight | 0.031 kg |
| Certification | CE |
| Battery technology | Alkaline |
| Material | Plastic |
| Battery type | AAA |
| Number of batteries supported | 2 |
| Cable length | 1 m |
| Height | 92 mm |
| Sensor type | Temperature sensor |
| Width | 39 mm |
| Depth | 33 mm |
| Connectivity technology | Wireless |
| Purpose | Indoor |
| Battery voltage | 1.5 V |
| Accuracy | 2 °C |
| RF transmission frequency | 868 MHz |
| Output power | 25 mW |
| Temperature measurement units | °C, F |
| Temperature measuring range | -30 - 60 |

## FAQ

### How much does the Temperature/Humidity Sensor TFA-Dostmann 30.3301.02 cost, and is it available for purchase?

The price is 20.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 14 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 06.07.2026 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 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 Temperature/Humidity Sensor TFA-Dostmann 30.3301.02?

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/627750/57477103_large.webp