Hygrometer / Thermometer

(677)

Whether it's cannabis, psilocybin mushrooms, fruits and vegetables, or houseplants—if you're growing indoors, you need to be in control of the environment to ensure your specimens flourish. With this simple, inexpensive 2-in-1 hygrometer-thermometer, tracking the humidity and temperature in your grow room couldn't be easier. Add one to your grower's toolbox today.

€ 9,99
€ 7,49 tax incl.
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ENSURE THE BEST CONDITIONS FOR YOUR GROW

Keeping close tabs on the environment of your indoor garden is central to growing healthy plants or fungi. Whether you're awaiting a bountiful harvest of cannabis or psilocybin mushrooms, trying your hand at growing your own fruits or vegetables, or simply looking to take better care of your houseplants, a hygrometer-thermometer should be high up on your list of must-have grow tools.

Temperature and humidity are key factors to monitor when growing any plant, and even the hardiest houseplant or cannabis strain can be affected by sudden changes in humidity or temperature. Houseplants, for example, generally grow best at daytime temperatures of 20–25°C (70–80°F) and 60–70% humidity, though some tropical plants prefer notably warmer, more humid conditions. Cannabis, on the other hand, loves daytime temperatures of 22–28°C (72–82°F) and humidity levels of anywhere between 40–70%, depending on the strain. Finally, if you've purchased one of our Magic Mushroom Grow Kits, you'll know that Psilocybe mushrooms need very stable conditions, with temperatures of 21–24°C (70–75°F) and 90–95% humidity.

With this inexpensive 2-in-1 tool, getting an overview of the conditions in your home, tent, grow room, or greenhouse couldn't be simpler. With the push of a button, you'll get a crystal-clear reading of the temperature and humidity of your environment so you can go ahead and correct any issues if need be. Get yours today and take the guesswork out of indoor growing!

How to Use an Indoor Hygrometer-Thermometer

Each unit comes with two mountable probes. To use your hygrometer-thermometer:

  1. Connect the probes to the screen display.
  2. Fix the probes somewhere in your grow space (under or above the canopy of your plants, for example).
  3. Place the screen somewhere where you can easily read it.
  4. Press the In/Out button to turn on the unit and, within seconds, get an accurate reading of the temperature and humidity in your grow space.

Note: In larger spaces such as grow rooms, consider taking multiple measurements at multiple places inside the room to catch any differences in conditions. When growing cannabis, you may observe different temps/humidity levels above and below the canopy of your plants, for example.

Magic Mushroom Hygrometer / Thermometer

Magic Mushroom Hygrometer / Thermometer

Reviews (677)
    (677)
    15/Oct/2025

    Good bit of kit
    Fairly priced and works accurately... Does what it says on the tin

    A. S.
    13/Oct/2025

    Functional but could be better
    The two functions work well enough, but there are a couple of issues: - the hygrometer takes a long time to adapt to the new humidity levels, and often simply reads '99%' even when it's outside the bags - the suction cup isn't the best, and slides down / falls off easily - the display of the numbers is relatively dim, making it hard to read in some lighting conditions

    S. D.
    13/Oct/2025

    Calidad-precio
    La calidad precio de este termometro higrometro es buenisima.

    P. G.
    12/Oct/2025

    Unverzichtbar Psyllos Zucht
    Ohne das geht es eigentlich gar nicht. Auch wenn man denkt das alles stabil ist die Gegebenheiten. Ist das manchmal nicht so. Mit diesem günstigen Gerät ist man auf der sicheren Seite.

    A. K.
    11/Oct/2025

    Super
    Super Gadget für kleines Geld

    K. M.
    08/Oct/2025

    Pratique
    Les câbles pourraient cependant être un peu plus longs

    D. B.
    08/Oct/2025

    Thermometer/hygrometer
    A functional and accurate meter, especially for growing mushrooms. Definitely a good and cheap purchase.

    J. Y.
    05/Oct/2025

    Passt
    Kann man gut brauchen, Kontrolle ist wichtig…

    C. W.
    05/Oct/2025

    Funziona bene!
    è attivo da due anni e funziona ancora!

    R. C.
    04/Oct/2025

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Hygrometer / Thermometer
Hygrometer / Thermometer
Hygrometer / Thermometer
Hygrometer / Thermometer
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All products are intended for legal purposes only and are not for consumption or illegal use. Cannabis seeds are sold as souvenirs, and germination is illegal in many countries—please be informed before purchasing. By purchasing, you confirm that you have reached the age of majority and are aware of your local laws. Zamnesia is not liable for any actions taken in violation of these laws. All cannabis, hemp, mushroom-related, and other products are sold in strict compliance with applicable local regulations.
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