Thermometers Direct

Thermometer & Hygrometer

Thermometer & Hygrometer

Hygrometers are a type of thermometer designed to measure the moisture in the air, such as humidity. Hygrometers measure and display humidity levels on a percentage scale with 100% being saturated; many also show the current room temperature.

At Thermometers Direct we have selected the very best in both analogue and electric or digital hygrometers to suit your needs including those which display dew point (the point that vapour is condensed into water).

Hygrometers are ideal for use in a range of locations such as spas, gyms and greenhouses to monitor the amount of humidity present.  Some Hygrometers also can also be used to detect moisture content of materials such as brick in order to detect damp.

16 Items

14 July 2023  |  Roy

Delivered in quick time and does what it says on the tin .No problems.


01 May 2023  |  Richard

I thought this was good until I purchased a SwitchBot bluetooth thermometer/hygrometer. The problem is that it cannot be user calibrated and you only know the absolute minimum and maximum temperatures. In reality, you need to know what is the temperature and humidity in your greenhouse hour by hour and to receive alerts to warn you to adjust ventilation. This kind of min/max thermometer was ok around 100 years ago, but for the same price you can do much better. I can check my greenhouse temperature (and humidity) from my living room armchair. Then decide if I need to pop out and open/close the ventilation or pop the shade over on hotter days. My other big problem is that the calibration is out by around 10C and cannot be adjusted. Sorry, but SwitchBot wins by a country mile.


19 February 2023  |  Michael

Ordered this Thermometer to replace my previous one which I lost. (a gift to Neptune?). To take the sea temp when I swim. So far so good! and the scale is easier to read whilst treading water.

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