SKU: 49622637198
indoor plant moisture meter

indoor plant moisture meter PlantDoc Moisture Meter - Mini Monstera

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Description

indoor plant moisture meter PlantDoc Moisture Meter - Mini MonsteraWhat is PlantDoc? You've just found the world's first and only 100% biodegradable, plastic free moisture meter. Meet PlantDoc. Saving lives, one plant at a time. The favourite tool of over waterers, under waterers and worried plant parents. Just what the (plant) doctor ordered to help solve your water worries. How does PlantDoc work? PlantDoc is a colour changing moisture meter that stays in your plant's pot, monitoring the moisture level at a glance.

What is PlantDoc?


You've just found the world's first and only 100% biodegradable, plastic-free moisture meter. Meet PlantDoc. Saving lives, one plant at a time. The favourite tool of over-waterers, under-waterers and worried plant parents. Just what the (plant) doctor ordered to help solve your water worries. 


How does PlantDoc work?


PlantDoc is a colour-changing moisture meter that stays in your plant's pot, monitoring the moisture level at a glance. No more guesswork. Pop it in a dry plant, white side facing out, and water as usual.


PlantDoc changes colour in response to the wet soil and the pattern appears. Your PlantDoc will slowly return to white as the soil dries out and it's time to water again. Simple!

What is PlantDoc made from?


PlantDoc is made from 100% biodegradable, compostable, sustainably-sourced plant-based fibres with non-toxic hydrochromatic colour-changing ink.


When it's ready to replace, pop it in the garden or your compost and PlantDoc completely breaks down with no residues. Safe for curious hands and paws with no harmful dyes or chemicals, making PlantDoc pet safe and kid safe. No batteries required.  

 

What comes in the box?


One box includes 5 PlantDocs, enough for around one years supply for one plant. One PlantDoc lasts one to six months each (depending on your soil type and watering frequency), so one 5 pack lasts from 5 to 30 months all up. All for just $4 per PlantDoc.


Sustainable, safe, non-toxic, biodegradable AND budget-friendly, a win for plants, plant parents, pets and the planet 💚


What substrates work best?


It might seem obvious, but because PlantDoc absorbs water from the substrate, which makes it change colour to tell you when to water when it dries out again, the substrate makes a difference. If your substrate barely holds much water, PlantDoc won't have as much water to absorb, and won't give as clear readings. That means fine to medium grade substrates with medium to high water retention work best.


Substrates with very low water retention can still work to some extent, but you won't get as accurate readings (like chunky or bark-based substrates), so they aren't the best match for using PlantDoc. No different than other water meters. Chunky substrates don't work well with any water meters. 


How to read PlantDoc


PlantDoc will change colour when wet and slowly return to white as the soil dries. You can decide when to water based on how dry your plant prefers to be.


MOIST

Peace Lily, Maranta, Stromanthe, Fern, Aglaonema, Anthurium and similar


For plants that like to stay lightly moist and are prone to dry leaf tips and margins if left dry for long, water again when PlantDoc is about 1/4 to 1/2 dry*


PARTIALLY DRY

Monstera, Philodendron, Fiddle Leaf Fig, Scindapsus, Epipremnum, Pothos and similar

For plants that prefer partially drying out before watering again, water again when PlantDoc is around 3/4 dry*


FULLY DRY

Hoya, Peperomia, ZZ and similar

For plants that like to fully dry between watering, water again when PlantDoc is fully dry*


DRY FOR A WHILE

Cacti and similar

For plants that love dry conditions for a while between watering, note when PlantDoc turns fully white and water again lightly in a couple of months* 


*Remember ALL moisture meters are only a guide, not gospel. They don't know what type of plant they're in. Moisture meters can only tell you what the moisture level is where they are in the plant, not when to water. You still need to decide when to water according to your plant's needs and your conditions. Moisture meters are a tool to help you read the signs. Don't ignore your plants other signs they need water, such as wilting.


How long does one PlantDoc last?


Although it does depend on how often you water and your type of soil, one PlantDoc normally lasts to 6 months. However (based on my own plants and watering habits), I found it was more around 1 to 3 months in my conditions.


In general I find for plants in a finer soil or plants that prefer to be maintained lightly moist (like a Peace Lily) it'll last shorter, vs plants in a grittier or chunkier mix that like to dry out fully between watering like Succulents and Cacti, where PlantDoc will last a lot longer. PlantDoc also 'reads' moisture better in soil types that are finer or hold more water.

Water your plant, not your PlantDoc! That can shorten its life. PlantDoc breaks down faster in always-wet, finer, more compact soil and lasts longer in drier, aroid-type potting mixes and with plants that prefer to dry out between watering.


When do you change PlantDoc?


You'll know when it's time for a new PlantDoc to take over when your PlantDoc no longer changes colour within half an hour of watering.


PlantDoc is also a great alert for pests and to help protect plant roots, as soil pests like fungus gnat larvae will chomp on your PlantDoc instead of your plant's roots. 


Why does PlantDoc turn brown?


Over time, some types of soils might stain your PlantDoc a brownish colour. More common with new soil or peat-based soils and new bark that have a higher tannin content. The same reason some plants turn drainage water yellowy-brown when you water them. Don't worry, that won't change the performance of your PlantDoc (but you can always change it early for the aesthetics if it does bother you).  


How does PlantDoc compare to other moisture meters?


All moisture meters have their pro's and con's but it can help to compare them to make the best choice for you and your plants. PlantDoc is the only fully biodegradable, plastic-free moisture meter in the world (patent pending).


SUSTEE

The closest type is Sustee. They also last a similar time, they also change colour, but Sustee is made of plastic (the core inside is partially compostable once you remove the plastic parts). PlantDoc is fully compostable and more budget-friendly.

Sustee cost between $16 and $22 per plant with refills around $8 to $11 per plant. PlantDoc are less than $5 per plant. Sustee do have 3 different sizes the largest size makes them better for deeper pots. PlantDoc is best from small to medium pots and measures the top 2 inches / 5cms of soil. Sustee are better for deeper pots. Like PlantDoc, Sustee don't work as well in chunkier substrates.


DIGITAL MOISTURE METERS

Unlike most digital meters, PlantDoc requires no batteries and can (and should!) be left in the plant. Digital water meters need to be moved from plant to plant manually to find out the moisture level. PlantDoc stays in the plant. 


3 IN 1 METERS

PlantDoc is more accurate than 3 in 1 type water meters with probes and gives you an immediate reading as you leave PlantDoc in your plant. The metal probes that 3 in 1 meters are made from erode in water so must NOT be left in plants, and need to be removed, cleaned and kept dry between use.  


PlantDoc don't last forever (I get 1 to 3 months use in my plants), but are fully biodegradable and 100% plastic-free. Good for our plants and the planet!

 

Shipping Notes
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4.4 ★★★★★
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Dre
Carnegie, US
★★★★★ 5
Comfortable. Great Value for money. Easy to assemble. Great customer service.
Color: Black, Size: Pack of 1, Color: Black, Size: Pack of 1
I've been looking for a new chair to replace a cheap $30 chair i bought off of Amazon last year that had been killing my back and shoulders. I wanted something in the $150-$200 range and settled on the M18. Shipping was a fast 3 days with Prime and the box arrived in great condition. All parts were separately wrapped or in their own boxes. Came with all hardware and nothing was missing. Assembly took me a little longer then normal because i have rotator cuff injury in my left shoulder so that arm is mostly useless. The most difficult part for me was attaching the wheels to the base. Other then that it was simple. Once the chair was assembled i sat in it for the first time and started making my adjustments with the recline feature, armrest level along with the headrest. Next i reached around for the lumbar support knob and tried to adjust it but with my bad shoulder i decided to just get out of the seat and turn it around and adjust it with both hands. After spinning the chair a round to get at the lumbar knob i noticed a large crack in the plastic in the middle of the back of the lumbar plastic piece. I had not made any lumbar adjustments yet so i assumed this is how i received it. The lumbar support comes preinstalled to the backrest so it either was damaged before or during the shipping process. Either way it was damaged before being delivered to me. The lumbar support still functioned properly but it was still broken. I decided to contact Sihoo's customer support that came along with the installation instructions regarding the damaged lumbar piece. I received a reply the next day and after sending them some more info about my order and a couple pics they shipped me a replacement part which took a week to arrive. I swapped out the damaged part and after owning the chair for a week so far i am really happy with my purchase. Im about 5'10 180lbs. At its highest height level my feet reach the ground comfortably flat footed. The backrest fully covers my back and the headrest adjusts very well to sit on the back of my lower head/upper neck. The armrests only go up and down....not forward and back or tilt inwards. This is fine for me as they are grooved to fit your forearm while sitting at your desk/keyboard. The armrests are also a soft cushioned rubber material...not a hard plastic. The mesh of the backrest and headrest are good material and seem well made. The seat is very wide and the cushioning is firm which i prefer. Usually more firm cushioning seems to last longer and hold its form. The base of the chair is VERY sturdy and made of all metal. My chair is on carpet and holds its position very well. As far as recline goes you can set it to recline all the way back, half way or lock the chair in the upright position. You can also adjust the resistance on the reclining feature. So that being said im very happy with my purchase. It arrived with a slight flaw which the company corrected in a fast manor and was very polite in their customer support. I personally don't have a lot of experience with many office chairs and have never used a high end chair($500-$1000+) chair before to make any comparisons. All my chairs for the most part have been from local stores like Staples or Office Depot. Id recommend this over anything they carry in this price range....and i went and looked at their products before buying this chair as well.
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Reviewed in the United States on September 1, 2023
H
Verified Purchase
Hamza Yahya
Cuba, US
★★★★★ 5
SIHOO M18 chair is amazing
Color: Black, Size: Pack of 1
I purchased the SIHOO M18 Ergonomic Chair a few years ago and have really enjoyed it. It’s very comfortable and offers multiple adjustments, whether you want to recline and relax or sit upright for work. The back support is also excellent, and I haven’t had any issues with the chair at all. You can easily tell it’s high quality from the build and appearance—no creaks or noises whatsoever. I highly recommend this chair to anyone in the market for a new office chair.
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Reviewed in the United States on June 12, 2026
M
Verified Purchase
Megan R Wesby
Battle Creek, US
★★★★★ 4
Good budget-friendly option
Color: Black, Size: Pack of 1, Color: Black, Size: Pack of 1
The chair arrived 4 days early and was easy to put together by following the instructions carefully. It feels sturdy and comfortable. It does support the lumbar region of the back and the arm rests are adjustable vertically as well as the head rest. I wish the arm rests were able to rotate in and out for added customization and that the back of the chair could be adjusted up and down for more precise support. But for a budget chair, it does a good job.
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Reviewed in the United States on June 4, 2026
F
Verified Purchase
farmhousewife
Fort Morgan, US
★★★★★ 5
A solid chair for the budget conscious sitter.
Color: Black, Size: Pack of 1
While this is not THE most comfortable chair, let's face it - if you sit for long periods, what chair IS? I bought this chair because I'm making a career change. I've returned to school and spend hours at my desk. At the age of 50, sitting for a long time with my nose pointed toward a book can be hard on the seat, back and neck. I looked at all kinds of office chairs and settled on this one, primarily because it was on sale, was in my budget and so I clicked the "Add to cart" button and hoped for the best. It was delivered, and I had to work that evening, and when I got home my 17-year-old son had assembled it. My theory on the simplicity of assembly can be deduced from that sentence above. He didn't have any extra parts left over and the chair was complete! I sat down. I leaned back. I shifted the lever that keeps the chair in an upright position and sat straight up. Okay! I can live with this. It has been almost two full months of using this chair and I have no problems. Pros: easy to assemble sufficient comfort level - adequate cushion in the seat can be leaned back or pop the lever in to stay straight up rollers on bottom headrest is adjustable affordable easy to clean arm-rests can be moved up or down height adjustment is self-explanatory - you'll figure it out the "lumbar" support is actually comfortable - it's "there" if you back up to it but if you scoot forward just a bit, you won't feel it if you don't want to sit like that Overall this seems like a chair that's going to last me for a few years, at least, and not fall apart. In the context of size, I'm not a small or extra larger person. I'm an average middle-aged woman with meat on the bones. The seat is plenty big enough. I would recommend this chair as an upgrade to the hand-me-down office chair that just isn't comfortable any longer.
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Reviewed in the United States on April 1, 2023
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Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 5
Love this chair!
Color: Black, Size: Pack of 1
I had an office chair that cost $300 more than this chair - had it for years, then things started breaking down on it. I read about this chair and, wow! I wish I had known about it sooner. It's more comfortable and it's not a chore to sit for a couple of hours working on designs. Wonderful design - supports my back well and it's very stable, easy to adjust.
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Reviewed in the United States on May 3, 2026

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