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Cheap mini-hygrometers for curing....

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    Cheap mini-hygrometers for curing....

    Getting close to harvesting my plants... Picked up a bunch of mini-hygrometers to put in my mason jars to help with curing... Was pleasantly surprised at how accurate they are, between 50% and 53%. They even match up closely to the hygrometers that I keep in my tents... Is this the norm or did I just get lucky...

    Click image for larger version  Name:	DNA2K0D.jpg Views:	0 Size:	399.3 KB ID:	509417
    Potting Soil Pro-Mix HP.
    Grow Light Phlizon 1200 watts LED grow light.
    Grow Tent 36 inches by 36 inches by 72 inches high.
    Circulation 2 six inch fans.
    Humidity 48% to 54% depending when I water the plants.
    Temperature 70 degrees F. with lights off. 78 degrees F. with lights on.

    Those look like the same ones I have. I put a few of mine in a jar with a boveda 62 to test and in a couple days they all read 62 or 63


      It’s not a coincidence 🙃 they kinda work. He best I’ve seen it’s xiaomi mijia Bluetooth hygrometers. Super cheap and much much more accurate and responsive than those black ones


        I have the small round ones. And they vary +/-5% from each other. I put 6 of them in a jar with a 62% Boveda pack for 2 weeks and they all read different numbers.

        If yours are accurate, i might have to ok into buying those.
        There are 3 things you must check everyday when growing in hydro:
        1) Water level (How much h2o is she drinking in 24hrs)
        2) pH level (change over 24hrs)
        3) ppm/EC level (How much food is she eating in 24hrs)


          Anyone know how long the batteries on the groboa ones (little rectangle) last I thought it was crazy it shipped turned on but now I’m thinking there’s little atomic reactors inside of them jokes aside they’re great I suggest everyone have atleast one


          • YYCannabis
            YYCannabis commented
            Editing a comment
            All my little ones (different brand) died within 12-15 months. But for all i know....they could have sat in a warehouse for 2 years before being shipped to me. Now i take the battery out when I’m not using the hygrometer.

          • DeadlyFruit
            DeadlyFruit commented
            Editing a comment
            I’ve only ever had one die in the last couple years, from battery dying or anything else. I second that there is a mini reactor in the little things! My rectangle ones are all within 1 or 2% of each other.

          • Poppa
            Poppa commented
            Editing a comment
            Like YYCannabis some mine lasted about a year and a half, last fall ordered some batteries and replaced ones that were dying and returned them to service.

          Maybe I should order some on Amazon. I just chop my Kali China this morning now they are in the "dry room"
          Light: Viparspectra P2000, Viparspectra P1500, Viparspectra XS2000, KingLed 1500
          Medium: organic, Fafard perlite, Fafard Urban Garden organic mix, Organic compost shrimps.
          Nutrients: Alaskan Fish, Advanced Nutrients Big Bud, Advanced Nutrients Ancient Earth, Advanced Nutrients Sensi Cal Mag Xtra
          Seeds: 9 GG#4 autos, 9 Amnesia Haze autos
          Grow room : 8X12X10, 2 industrial fans, 1 dehumidifier, 1 Vivosun carbon filter & controller
          And trying to grow Mexican landraces in the Yucatan. Well why not eh !!


          • MuskieMan
            MuskieMan commented
            Editing a comment
            I was pleasantly surprised that they are so close to each other...

          • Farmbuck
            Farmbuck commented
            Editing a comment
            Thanks MuskieMan Oh yeah I need some boveda also.

          • DeadlyFruit
            DeadlyFruit commented
            Editing a comment
            Those ones look just like mine although different seller.

            Like the cheap yellow pH meters, I bet they are all made by the same one or two companies.

          No batteries required. Accurate for the last five years and counting.


            I think I use the same as those and never had any issues. I only use them for the first couple of weeks of curing then once I’m happy with the buds i take them out.


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