KYARI Plant Water Meter, Soil Moisture Sensor for Indoor & Outdoor Plants, No Battery Required - Hydra Blue, Pack of 10

Here are some tips for using a plant water meter pen:When to useUse a plant water meter pen after watering to check if the plant is well-watered. You can also use it before watering to determine when your plant needs water.How to useInsert the pen into the soil about 1/2 to 3/4 of the way, being careful not to damage the roots or the pen. You can also test multiple areas of the pot, as some areas may be drier than others.How to readThe meter will have a color-coded display that indicates whether the soil is dry, medium, or moist. For example, a reading in the blue wet zone indicates that the plant is well-watered.How to use for the first timeIf you're using the pen for the first time, you can put it in a glass of water until the indicator turns blue, then transfer it to the plant pot.What to do if the soil is packedIf the soil in your plant pot is packed, you can loosen it up with a trowel before inserting the pen.

Poor quality of information printing on how to use them. 4 out 5 boxes had no info at all. The Only box with the info had incomplete description. If that was not enough, none of the sticks showed any results. Total failure. Highly disappointing knowing even after featuring on shark tank, company isn’t doing justice to their products or their customers.

Editing my review after 2 months of uses. Good for indoor plants not for outdoor plants. Sometimes not working well in wet soil. Then wash the pen and again use of this.

It's very good tool, to test the water of plant.It is very useful for the sensitive plants which die due to excess or less water.I lost so many plant due to excess water.By using this I can check the water amount and water only when required.Very useful if you are new to gardening

Its not as good as using a separate meter. The colour changes are subtle so have to do some guesswork on whether to water or not. Mahbe a different colour scheme would be good. Overall slightly above average.

Doesn't work at all. Waste of money.

I like the water meter as ... earlier my plant used to die because of over watering or less water.... it's a good product for indoor plants

Normal and no special thing