Try our cookies Alza.cz a. s., Company identification number 27082440, uses cookies to ensure the functionality of the website and with your consent also to personalisage the content of our website. By clicking on the “I understand“ button, you agree to the use of cookies and the transfer of data regarding the behavior on the website for displaying targeted advertising on social networks and advertising networks on other websites.

We use 8 categories of cookies on our website:

Technical cookies
These are strictly necessary for the functioning of the website and the features you choose to use. Without them, our website would not work; you wouldn't be able to log in to your user account, for example.
Functionality cookies
These cookies allow us to remember your basic choices and improve the user experience. These include remembering your preferred language or allowing you to stay logged in permanently.
Social media cookies
These cookies allow us to easily link you to your social media profile and, for example, allow you to share products and services with your friends and family.
Content personalisation
These cookies allow us to show you content and ads according to the information we have about you to best meet your needs. This includes what content you have viewed, or on what device you are accessing our website.
Non-personalised advertising
These cookies allow us to show you general ads for products and services.
Personalised advertising
Thanks to these cookies, we and our partners can offer you relevant products and services based on your purchases, your shopping behaviour and your preferences.
Audience metrics
These cookies allow us to optimise our site for your convenience based on how you use it. The aim is to remember or anticipate your choices. This includes, for example, the use of features, their location, or the behaviour on the page.
Third party cookies
These are third party cookies, and you can find out more about them and our partners here.

By giving your consent to the processing of cookies, functionality and analytical cookies will be installed on the device you use to browse the website (click on the "I understand" button for both categories, or you can select only one of the categories by clicking on the "Settings" button). We always install technical cookies on your device, even without your explicit consent, because without them our website would simply not work.

You can revoke your consent to the processing of cookies. In connection with our company's cookie processing, you also have the following rights: the right to access cookies, delete, modify, supplement and correct them, restrict processing and the right to lodge a complaint with the Office for Personal Data Protection. Read more about your rights.

For even more detailed information about how we process cookies, please see our Personal Data Protection Policy.

I understand Detailed settings Reject everything

Catalogue

House, Hobby and GardenElectrical WiringHome SecurityDetectorsEMOS GoSmart Air Quality Monitor E30300 with Wifi

EMOS GoSmart Air Quality Monitor E30300 with Wifi - Air Quality Meter

Reviews EMOS GoSmart Air Quality Monitor E30300 with Wifi

Interested in reviews of EMOS GoSmart Air Quality Monitor E30300 with Wifi? It got 4.2 out of 5 stars from our customers. Find specific customer reviews of EMOS GoSmart Air Quality Monitor E30300 with Wifi below. We will appreciate if you also share your experiences with EMOS GoSmart Air Quality Monitor E30300 with Wifi after purchasing.

109.90 €

In stock > 5 pcs

Add to Cart More Information

Accessories
Reviews 5

User Reviews

Tomáš, Horní Bezděkov

Rated 08/12/2025, variant EMOS GoSmart Air Quality Monitor E30300 with Wifi

Verified purchase

I have two of these devices. They both measure the same. But I tested them against 5 other devices (two of them with real NDIR sensor SCD40! ) and the instruments show 200 PPM less. After calibration and 2 weeks of operation. So they're not very accurate, unfortunately. If you always add 200 ppm, you get the actual actual CO2 concentration in the room. So inaccurate and for almost 2,5 thousand, it's too much.

Large display

quite accurate temperature and humidity measurement

Inaccurate sensor for CO2 measurement

0 ×Report

Automatic translation

Filip, Kurdejov

Rated 16/02/2025, variant EMOS GoSmart Air Quality Monitor E30300 with Wifi

Verified purchase

I don't know how accurate the value is, but in any case it reacts as expected - the more people in the room, the faster the CO2 rises, after ventilation or recuperation is switched on, the value drops. I had to set a more frequent mode of switching on the recuperation than I had just set by feeling before measuring. They don't last long - I use it without the display on and paired with the app, so you can monitor the CO2, temperature and humidity trends on your mobile phone with the room you have the meter in. I have it hooked up to a power bank to keep it mobile and last longer.

shows CO2 values. One gets an idea of the breathability of the room and the need for ventilation.

0 ×Report

Automatic translation

Reality Best s.r.o., Plzeň

Rated 28/01/2025, variant EMOS GoSmart Air Quality Monitor E30300 with Wifi

Verified purchase - review from a price comparison website

I can 100% recommend it. The CO2 meter is really functional. A great advantage is the several hours of battery operation, when the device can be moved to any room. If you have, for example. a small study, you'd be surprised how quickly you need to air out. On the other hand, in large spaces (e.g. in a combined living room and kitchenette with 2 people) you only need to ventilate thoroughly in the evening and not every moment, as the "experts" convince us. This makes it easy to get an idea of the need/need for ventilation in different rooms, taking into account their size, the number of people and the length of time they are occupied.

0 ×Report

Automatic translation

Anonymous customer

Rated 05/01/2025, variant EMOS GoSmart Air Quality Monitor E30300 with Wifi

Verified purchase

Perfect for measuring air quality in the apartment where you optimize variables: humidity, CO2 and temperature

Simple controls for boomers (points at himself) - actually just 1 big mechanical button.

I don't need any f***ing mobile app

Clear display, numbers can be seen even when viewed from the couch ~ 4 m, colour differentiation of sections

Portability - charges via USB-C and then lasts for several hours, you can transfer between rooms. No replacement of fat batteries. Hence the low weight

Acoustic signalling of high CO2 levels can be switched off

After switching off/on, it calibrates within 180 sec. Apparently it also has a small ROM memory, where it keeps the previous settings

Price

Binary backlight - light/dark, nothing in between. I'm turning off the display for the night.

I originally wanted another one, but only this one was in stock. Satisfaction in the end

USB-C cable is tristically short, I buy a new one

The A/C plug is not included. This saves the manufacturer £0.25 per pack, so board members can split a nice quarterly bonus. Nobody in this world cares that they've pissed off every one of their customers. is not just a matter for this company

0 ×Report

Automatic translation

Jan, Praha 10

Rated 07/12/2024, variant EMOS GoSmart Air Quality Monitor E30300 with Wifi

Verified purchase

usb c charging

app terrible, can't export data, can't see more than the status 3 hours ago

after about 2 weeks it measures CO2 completely nonsense - 450 in an average ventilated room where I am all day. whereas 2 weeks ago it measured 800 under the same conditions

discharges quickly, long start-up process after discharge

0 ×Report