# Thermometer/hygrometer sensor module TFA-Dostmann 35.8104.02, external probe compatible with TFA devices

**URL:** https://aio.lv/en/product--tfa-dostmann-35810402--11338758
**Data updated:** 2026-01-19 07:36 (EET)
**Category:** Home Goods Accessories
**Manufacturer:** tfa dostmann
**Manufacturer code:** 35.8104.02
**EAN:** 4009816042361
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 119.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 99.17 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tfa-dostmann-35810402--11338758

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

TFA-Dostmann 35.8104.02 is an external sensor module designed for use with compatible TFA monitoring devices. It provides temperature and/or humidity measurement via an external probe, enabling placement away from the main unit for more accurate or localized readings. Suitable for home and indoor monitoring, greenhouse or storage applications where remote sensing improves control and comfort.

## Long description

TFA-Dostmann 35.8104.02 is an external thermometer/hygrometer sensor module designed for use with compatible TFA Dostmann monitoring devices. The module accepts an external probe to measure temperature and/or humidity at a remote location, allowing the main device to display conditions from a different room, greenhouse, storage space or other area where localized measurement is required. It is intended as an accessory for indoor monitoring tasks and for situations where environmental data must be collected away from the main instrument.
Advantages
The external sensor module enables placement of the sensing probe at a distance from the base unit, improving measurement relevance in locations where the main unit cannot be placed. Compatibility with TFA Dostmann devices ensures direct integration without additional converters. The design supports both temperature and humidity sensing via the external probe, helping to obtain localized readings for better control and monitoring of indoor environments and small enclosures.
Suitable for
Home indoor temperature and humidity monitoring where the main unit is placed elsewhere
Greenhouse or plant care applications requiring remote sensor placement
Storage areas, cabinets or rooms where localized climate data is needed
Workshops or utility spaces where the main display cannot be installed
Key specifications
Type: external sensor module for temperature and/or humidity via probe
Compatibility: designed for use with compatible TFA Dostmann monitoring devices
Probe connection: external probe interface (probe supplied or sold separately depending on kit)
Installation: intended for indoor use and remote placement relative to the base unit
Measurement focus: localized environmental readings for temperature and humidity control
How to use
Connect the external probe to the TFA-Dostmann 35.8104.02 module according to the instructions provided with your TFA Dostmann base unit. Place the probe in the target location where temperature and/or humidity should be measured, ensuring the probe is not directly exposed to heat sources or water. Position the main TFA Dostmann display unit in a convenient viewing location and ensure the connection between the module and the display is secure and compatible. Follow the pairing or configuration steps described in the base device manual to enable the remote readings to appear on the main display.
Usage recommendations
Install the probe in a representative location away from direct sunlight, heaters, vents or open windows to obtain accurate readings. Regularly inspect the probe and connection for damage or moisture ingress and consult the TFA Dostmann device manual for compatible probe types, placement guidance and maintenance instructions.

## FAQ

### How much does the TFA‑Dostmann 35.8104.02 external sensor module cost, and is it available for purchase?

The price is 119.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 15.07.2026 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. 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

## Image

https://aio.lv/img/cache/product/11338758/66992480_large.webp