MikroTik Clairé Lite Connected Indoor Environment Monitor
CLAIRÉ Lite is the budget-friendly option for smart indoor environment monitoring – tracking CO₂, VOC, temperature, and humidity, without the dedicated PM2.5 and PM10 sensors of the full CLAIRÉ. Matter over Thread brings it all into your smart-home automations.
Brochure: CLAIRÉ Lite
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Your home's data can stay at home. Build local smart-home automations with Home Assistant and hAP be³ Media – without sending every reading to a server on the other side of the world.
- CO₂ : Feeling tired or having trouble concentrating? Before blaming the workload, check the room. CO₂ can build up faster than you might expect.
- VOC : Perfume, paint, glue – or solvents in the workshop. Many products and processes release volatile compounds you can't reliably see or smell. CLAIRÉ will warn you.
- Temperature + humidity : keep comfort in check, spot unwanted humidity, and make smarter heating and ventilation decisions.
Need particle monitoring too ? Choose instead the full CLAIRÉ with dedicated PM2.5 and PM10 detection

It's surprisingly difficult to judge ventilation by feel. Cracking a window can make a room feel fresher without telling you how much CO₂ remains. CLAIRÉ replaces the guesswork with a number. Open the window and watch it fall. Close it when you're satisfied.
Consider this: you take around 20 000 breaths every day. Better input, better output: deal with the air quality in your home, and pretty soon you might notice better sleep & focus, more energy – as your lungs finally get the fresh air you thought they were getting all along
No smart home required. The 2" colour display puts the readings right in front of you, with selectable views and colour-coded warnings when the air takes a turn.

Putting “Art” into “Smart Home”: elegant automation via Matter over Thread
Knowing when to open a window is useful enough. But CLAIRÉ is also a Matter over Thread device. Pair it with a compatible smart-home system and its measurements can become inputs for automations.
- CO₂ is getting high ? Turn up compatible ventilation.
- air quality deteriorates rapidly ? Send a notification, for example, over the phone, e-mail, SMS, light or through custom sound signals in the affected rooms.
- conditions return to normal ? Turn the ventilation back down – better your wallet and for the planet
With a maximum power consumption of less than 1 W, CLAIRÉ can easily run from a USB powerbank or MikroTik GPOE-USB – handy when you want to check the air somewhere without a convenient power outlet.