I can't really. I don't have other sensors besides the temperature matching what the thermostat says. In the talk I linked, DHH said he had tried dozens of oth

I can't really. I don't have other sensors besides the temperature matching what the thermostat says. In the talk I linked, DHH said he had tried dozens of other sensors and found this one surprisingly accurate for the price point. He did mention the temperature and humidity readings were not as accurate as he expected since sensors for those are so cheap, but that's not really why I got one.