HomeKit Review: new Eve room 2nd Gen indoor Air quality monitor

Last month we took a look at the Eve Degree, this time it’s the turn of the new second generation Eve room (model ZM-51946).

Eve room 2 is an air quality and in-door climate monitor. setup is an identical process to the degree and It’s housed in the same sleek aluminium shell, but features a new 1.54″ 200×200 pixel (183 dpi) E-ink display instead of LCD, which looks really good. pressing the capacitive touch zones on either side of the screen cycle through 4 different layouts of its data.

In another change from the Degree, the new room unit has a built-in rechargeable battery. around 2 hours connected to a micro USB charger (lead included) supplies around 6 weeks of use. When the battery runs low the unit switches to a minimized power mode, limiting measurements to temperature and humidity. You can chose to power the unit permanently from USB too if you prefer.

The Mk1 Eve room unit was much larger and a lot more utilitarian looking than this new Mk2. as well as the aesthetics, the on-board tech has an upgrade here too. Eve are keen to point out the precision of the new sensor which uses state-of-the-art technology from Swiss specialist Sensirion…

“After the first, highly successful generation of Eve Room, this new version raises the bar even higher,” says Markus Fest, Managing director of Eve Systems. “No other air quality sensor uses this level of accuracy, design quality, and energy efficiency.”

As well as temperature and Humidity the sensor can also detect the concentration of volatile organic compounds (VOC) which are linked to the quality of air in your home.

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The process that figures out the concentration of volatile organic components (VOC) is not only very energy efficient, but thanks to optimized materials, it’s also particularly long lasting and accurate over the long term. Air quality, temperature, and humidity can be checked by means of the Eve app and Siri, or directly on the 1.54″ E-Ink display,

And as with the degree unit, that’s one of the big advantages here. You can get a visual indication of your air quality with a quick glance at the units display. A 5 star rating sits along the bottom of the screen making it basic to keep an eye on things. We observed it going as low as 3 stars on some occasions and you can see the restorative effect of just opening a window within a few minutes.

HomeKit allows you to use your voice too if you’re not in the room – “Hey Siri, how’s the air quality in the baby’s room?”

Historical Data

Just like with home energy consumption, measurement is the crucial first step required to improve your home’s air quality. You can export historical data to an Excel file (.xlsx). however we’d really like to do a lot more with the graphs on the app itself. We want to be able to zoom in and out, see the date and time at points I touch on etc. hopefully this is all evident stuff that the Eve app team are already working on.

HomeKit Pros & Cons

The normal HomeKit pros and cons apply here. great if you’re an iOS household and while no bridge is required, you really need an Apple TV or HomePod to get the most from the system (while we wait for Bluetooth extenders, check out the HomeBridge-Ranger plugin for HomeBridge). As with the Degree, Apple do not currently supply a way to send a push notifications from the Room, as they only allow this for air quality monitors that are based on CO2.

The new updated version of Eve room is a leap forward in comparison to its older sibling. It’s smaller, a lot prettier and its high contrast e-paper display is absolutely an upgrade from the LCD screen on the Degree.

If you’re trying to find a HomeKit air quality monitor then check it out. The new 2nd gen Eve room is available now for around £90.

994 Reviews

Eve ZM-51946 room – indoor Air quality monitor for tracking VOC, temperature & humidity; e-ink-display, no bridge necessary, Bluetooth low energy (HomeKit), Black

tap into your home: track air quality (VOC), temperature (°C/°F) and humidity
Elegantly crafted: high-contrast e-ink display with anodized aluminum bezel
Know at a glance: choose your favorite measurement layout for quick reference


get on Amazon

evehome.com  :  available from Amazon

Operating Range

0°C – 50°C / 32°F – 122°F
5% – 95% humidity


Typical ± 0.3°C / ± 0.54°F
Typical ± 3% humidity

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Last update on 2021-10-04 /affiliate links / images from Amazon product advertising API

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