Temperature and humidity sensors
A temperature and humidity sensor monitors the climate in every room. It feeds thermostats for precise heating, starts a dehumidifier or ventilation and warns of mould risk in the bathroom or cellar.
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How to choose a smart thermometer and hygrometer
Sensors mainly differ in display (with a display you see values without your phone), accuracy and protocol. For a freezer or pool choose a model with an external probe.
- With display – Sonoff SNZB-02D, Shelly BLU H&T Display, Nous LCD.
- Without display – small Sonoff SNZB-02P and Aqara sensors.
- With probe – Sonoff SNZB-02LD for fridges, freezers or aquariums.
- Soil moisture – sensors for plant pots and the garden.
Sensor data is used by thermostats and radiator valves. For CO2 and dust see air quality sensors.
Frequently asked questions
Can a sensor control a radiator valve?
Yes, via the hub. The valve then heats according to the temperature in the middle of the room, not by the radiator.
What is the ideal indoor humidity?
40 to 60 % is recommended. The sensor alerts you when humidity is too high or too low.