Soil Moisture, Light and Nutrient Sensor for Plants
Soil Moisture, Light and Nutrient Sensor for Plants
- Tracked US shipping
- 14 day returns
- Fast, friendly support
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Overwatering kills more houseplants than forgetting to water does, and the surface of the soil tells you almost nothing about what is happening down at the roots. This probe pushes into the pot and reports four things: soil moisture, fertility, temperature and light.
- Reads soil moisture, fertility, temperature and light
- Runs on one CR2032 button battery, included
- Smart App version pairs to a phone over Bluetooth
- Indicator Light version works with no phone at all
- Sold singly or in packs up to five for a shelf of plants

Versions
| Version | How you read it |
|---|---|
| Smart App | Pairs over Bluetooth and shows moisture, fertility, temperature and light on your phone, with history over time |
| Indicator Light | No phone and no pairing. A colored light on the probe tells you what the pot needs |
Light colors
| Color | What the pot needs |
|---|---|
| Blue | Soil is dry, time to water |
| Yellow | Fertility is low, feed it or move it into richer soil |
| Pink | Nutrient levels are running high |
| Red | Battery is low |
| Green | Nothing to do |
Good to know
The probe reads the pocket of soil it sits in, so push it in near the root ball rather than against the wall of the pot, where soil always dries first. And it tells you when the pot is dry. It does not go get the watering can.
Shipping across the US
Shipping across the US
We ship to the United States only for now, tracked on every order and free from $89.
Orders are processed within 1 to 3 business days.
Priority Insured Shipping: estimated delivery in 7 to 12 business days.
Standard Tracked Delivery: estimated delivery in 8 to 15 business days.
Delivery estimates include processing and transit time. Business days exclude weekends and public holidays.
14 day returns
14 day returns
Request a return within 14 days of delivery. Email us for authorization before sending the item back.
Send it back unused, tags on, in its original packaging. Your order confirmation is all the proof we need. We do not charge restocking fees. Full conditions are in our refund policy.
Once we receive and inspect your returned item, we email you to confirm whether the refund is approved. Approved refunds are issued to the original payment method within 7 to 10 business days. Your bank or payment provider may need additional time to post the refund to your account.
About us
About us
Welcome to HollowMade. We hunt for the pieces that make a room worth walking into: vessels, lighting and sculpture, picked one at a time and kept on our own shelves.
Chosen, not listed - Every piece is handled and checked before it ships. If it would not earn a place in our own home, it does not make the catalogue.
Fair prices, quietly - We keep the range tight and the margins honest, so a good object costs what it should and reaches your door wherever you are.
A person on the other end - Write to us and someone reads it. Before the order, after the order, either way.
Questions?
Questions?
Not sure about a size, a finish or a lead time? Send us a note and a person answers, usually the same day.

Who we are
We hunt for the pieces that make a room worth walking into. Vessels, lighting and sculpture, chosen one at a time and shipped from our own shelves.
