1. What exactly does a comfort meter measure?
Two things simultaneously: temperature and relative humidity. Together, these determine how a room feels – hence the name. Some models mark the comfort zone on the dial, so you can see at a glance if the indoor climate is good.
2. What is a healthy indoor climate?
Between 40 and 60 percent humidity at room temperature. Consistently above 70 percent is a signal to ventilate; below 40 percent, the air becomes dry for throats and woodwork.
3. Does a comfort meter need power?
No. Temperature is measured with a bimetal strip and humidity with a synthetic fiber that expands and contracts with moisture in the air. Completely mechanical, so never a dead battery.
4. Why does the humidity measurement react slower than the temperature?
That's how it should be: the fiber needs a little time to adjust to the environment. After moving or delivery, give the instrument an hour before taking the first reading seriously.
5. Where is the best place to hang it?
Midships or centrally in the room, out of direct sunlight and not above a stove, heater, or shower door – there you would be measuring the source instead of the climate.
6. My comfort meter deviates from a digital meter. Which one is correct?
Small differences (a few percent) are normal; each measurement principle has its own characteristics. More important than the absolute number is the trend: if the humidity rises every night, then that is the information you need to act on.