# Wall-mounted gas detector tfa dostmann AIRCO2NTROL OBSERVER — Carbon monoxide (CO), LED display, AC 100–240V

**URL:** https://aio.lv/en/product--tfa-dostmann-315002--4123797
**Data updated:** 2026-03-12 16:20 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** tfa dostmann
**Manufacturer code:** 31.5002
**EAN:** 4009816023582
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 460.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 380.57 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tfa-dostmann-315002--4123797

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.99 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

The tfa dostmann AIRCO2NTROL OBSERVER is a wall-mounted gas detector for monitoring carbon monoxide (CO). It features a black plastic housing, LED display and AC power operation (100–240 V, 50/60 Hz). Dimensions: 298 × 122 × 213 mm. Designed for continuous indoor CO detection in homes, garages, boiler rooms and commercial premises.

## Long description

The tfa dostmann AIRCO2NTROL OBSERVER is a wall-mounted gas detector designed to monitor indoor carbon monoxide (CO) levels continuously. Housed in black plastic, the unit features an XL-format LED display with large luminous digits and a coloured smiley indicator for quick visual assessment of air quality. The detector operates from AC mains (100–240 V, 50/60 Hz) and is sized to fit visible mounting locations with dimensions of 298 × 122 × 213 mm. In addition to CO monitoring, the device provides temperature and humidity readouts and adapts display brightness automatically for clear visibility in varied lighting conditions.
Advantages
The compact wall-mounted design offers uninterrupted CO monitoring without the need for frequent battery changes thanks to AC power operation. The XL-format LED display with luminous digits and coloured smiley symbol enables fast recognition of hazardous CO concentrations and general indoor air status from a distance. Built-in temperature and humidity display deliver contextual environmental information alongside gas concentration, while automatic brightness adjustment ensures legibility in both dim and bright interiors.
Suitable for
Homes and residential apartments where continuous CO monitoring is required
Garages and workshops with combustion appliances or vehicles
Boiler rooms and utility areas with heating equipment
Commercial premises, offices and public spaces needing visible indoor air status
Key specifications
Measured gas: carbon monoxide (CO)
Power supply: AC mains 100–240 V, 50/60 Hz
Housing: black plastic
Display: XL-format LED with large luminous digits and coloured smiley indicator
Additional sensors: temperature and humidity display
Automatic brightness adjustment for display
Mounting: wall-mounted form factor
Dimensions: 298 × 122 × 213 mm
How to use
Mount the AIRCO2NTROL OBSERVER on a wall in a central indoor location following the manufacturer’s installation guidance, avoiding direct proximity to windows, doors or ventilation outlets that could affect readings. Connect the unit to the AC mains supply (100–240 V, 50/60 Hz) using the appropriate cable and ensure the power connection is secure. Allow the device to stabilise after power-up; the LED display will show CO concentration along with temperature and humidity. Monitor the coloured smiley indicator and numeric display regularly; if elevated CO levels are detected, follow safety procedures such as ventilating the space and investigating potential sources of combustion.
Использование и рекомендации
For reliable continuous monitoring, install the detector at breathing height in occupied rooms and carry out periodic visual checks of the display. Avoid placing the unit near strong drafts, direct sunlight or heat sources to prevent distorted temperature, humidity or CO readings. Follow local safety rules and act immediately if high CO concentrations are indicated.

## Specifications

| Feature | Value |
|---|---|
| Weight | 1.4 kg |
| Operating relative humidity (H-H) | 0 - 95 |
| Storage temperature (T-T) | -20 - 60 |
| Operating temperature (T-T) | 0 - 40 |
| Height | 213 mm |
| Width | 298 mm |
| Depth | 122 mm |
| Product colour | Black |
| Housing material | Plastic |
| Power source type | AC |
| AC input frequency | 50/60 |
| AC input voltage | 100-240 |
| Built-in display | Yes |
| Display type | LED |
| Detected gas types | Carbon monoxide (CO) |

## FAQ

### How much does the tfa dostmann AIRCO2NTROL OBSERVER gas detector cost, and is it available for purchase?

The price is 460.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 20.07.2026 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

### Where can I download the instructions for tfa dostmann AIRCO2NTROL OBSERVER gas detector?

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/4123797/58758688_large.webp