Aranet Radiation vs Ecobee Smart Thermostat Premium

By the tracked specs the Ecobee Smart Thermostat Premium wins, thanks to a longer warranty and a far broader connectivity, integrations, sensors and alerts set from being a full smart thermostat. The Aranet Radiation costs less and holds a higher owner rating, but the two devices serve completely different purposes.

Not really as a direct swap. The Ecobee Smart Thermostat Premium is a wired HVAC controller with a bundled TVOC and CO2 sensor, while the Aranet Radiation is a portable, battery-powered radiation detector. They appear together here only because both are catalogued as air-quality monitors, not because one can replace the other.

Purpose. The Ecobee Smart Thermostat Premium controls heating and cooling and happens to include TVOC, CO2 and occupancy sensing as a bonus. The Aranet Radiation does not control anything, it is a dedicated dosimeter that tracks ionizing radiation dose rate and total dose, a sensor the Ecobee does not have.

No. Its air-quality sensing covers TVOC and CO2 only, with no ability to detect ionizing radiation. Anyone who wants radiation monitoring needs a dedicated device like the Aranet Radiation.

Choose it if you want a full smart thermostat for heating and cooling that also flags stale indoor air via TVOC and CO2 sensing, with broad smart-home support across Google Home, Alexa, Apple HomeKit, SmartThings, Home Assistant and IFTTT.

Choose it only if background ionizing radiation is the specific hazard you want to monitor continuously. It is not a thermostat and will not control your HVAC system or track TVOC and CO2 the way the Ecobee does.