---
product_id: 659574488
title: "THIRDREALITY Smart Soil Moisture Sensor,Zigbee hub Needed,Accurate Measure,Capacitive Probe,Moisture/Temperature Meter for Garden Planting,Compatible with Homey,Hubitat, SmartThings,Home Assistant"
brand: "thirdreality"
price: "¥6942"
currency: JPY
in_stock: true
reviews_count: 8
category: "Thirdreality"
url: https://www.desertcart.jp/products/659574488-thirdreality-smart-soil-moisture-sensor-zigbee-hub-needed-accurate-measure
store_origin: JP
region: Japan
---

# Zigbee 3.0 connectivity Long-lasting AA battery powered Dual moisture & temperature sensing THIRDREALITY Smart Soil Moisture Sensor,Zigbee hub Needed,Accurate Measure,Capacitive Probe,Moisture/Temperature Meter for Garden Planting,Compatible with Homey,Hubitat, SmartThings,Home Assistant

**Brand:** thirdreality
**Price:** ¥6942
**Availability:** ✅ In Stock

## Summary

> 🌿 Stay ahead in smart gardening — because your plants deserve VIP treatment!

## Quick Answers

- **What is this?** THIRDREALITY Smart Soil Moisture Sensor,Zigbee hub Needed,Accurate Measure,Capacitive Probe,Moisture/Temperature Meter for Garden Planting,Compatible with Homey,Hubitat, SmartThings,Home Assistant by thirdreality
- **How much does it cost?** ¥6942 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/659574488-thirdreality-smart-soil-moisture-sensor-zigbee-hub-needed-accurate-measure)

## Best For

- thirdreality enthusiasts

## Why This Product

- Trusted thirdreality brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Real-Time Remote Alerts:** Get instant smartphone notifications to never miss your plant’s watering needs.
- • **Future-Proof OTA Updates:** Enjoy hassle-free firmware upgrades ensuring your sensor stays cutting-edge.
- • **Precision Capacitive Probe:** Accurate moisture readings unaffected by soil salinity or pH for healthier plants.
- • **Automated Watering Routines:** Set smart schedules that save time and prevent overwatering with home automation hubs.
- • **Seamless Zigbee Integration:** Effortlessly sync with Home Assistant, SmartThings, Hubitat & more for smart garden control.

## Overview

The THIRDREALITY Smart Soil Moisture Sensor is a Zigbee 3.0 compatible device designed for precise soil moisture and temperature monitoring. Powered by a single AA battery, it features a durable capacitive probe that delivers reliable readings across diverse soil types. Compatible with major smart home ecosystems like Home Assistant, SmartThings, and Hubitat, it enables real-time alerts and automated irrigation control. Ideal for indoor and outdoor gardening, this sensor empowers millennial professionals to optimize plant care with smart automation and remote monitoring.

## Description

desertcart.com: THIRDREALITY Smart Soil Moisture Sensor,Zigbee hub Needed,Accurate Measure,Capacitive Probe,Moisture/Temperature Meter for Garden Planting,Compatible with Homey,Hubitat, SmartThings,Home Assistant : Appliances

Review: It works. It's huge. Not an instant solution. - I recently had a problem with root rot in my indoor Tea Rose. I'd been looking for a zigbee soil monitor for a while and my discovery of this lined up with my holiday shopping, so it seemed like the time to give it a try. The Good: Connects immediately to SmartThings, and so will also work with most other smart home ecosystems. Measures both temperature and "humidity". Waterproof (safe for outdoor use). Includes a battery. The Bad: What the description doesn't tell you - this thing is HUGE. Way bigger than the illustrations let on. The default SmartThings driver does not include battery level, but the device does report it. The ThirdReality Temp/Humidity driver includes battery, but only reports temperature OR humidity on the icon (you have to open the device in the app to see both readings). The Ugly: Digital soil meters are still not very common. This means there's no standards for measuring soil moisture and no standards for when to water various plants based on that digital reading. Humidity readings are reported very infrequently and take a while to update when the moisture level changes or if the meter is removed and replaced. I've had this for a couple weeks now. Overall I like it and would recommend, but it's not going to immediately solve all of your over/under watering problems. Set your expectations. It's not clear in the description or documentation how this device measures humidity. However, the design of the sensor post suggests it's measuring soil conductivity, like most analog moisture meters. It's also not clear how the reading is calibrated. And of course there are no instructions regarding what moisture levels are appropriate for what plants (though this is understandable, since ThirdReality is a tech company not a gardening company). What all of this means is that you'll have to do some science: Water according to your normal schedule and monitor the readings from this device in order to "calibrate" yourself. Once you've gone through a few watering cycles and seen how this reads, you can set your automations or alerts accordingly. Removing and replacing the sensor will alter its readings! I tested removing and replacing the meter. The reading went from 36% before to 0% removed and 10% after. I dug down a couple inches to confirm that the soil is still damp down below. This is likely just due to poor soil contact with the sensor probe, which will improve with watering and soil settling. This means that once you've place it and started your "calibration", it should stay put; removing it will require you to "recalibrate". For a version 2, I think they could reduce the size quite a bit if they tried. A smaller sensor would be nice, and most of the size is to accommodate the battery. I'd also like to see a version that could be externally or solar powered to reduce battery waste. And updating the ThirdReality ST driver to display both temp and humidity in the device thumbnail would be nice. But most of all, including a chart of "ideal water levels" for some common plants would elevate this substantially, making it a lot more user friendly for beginners or those trying to compensate for a "black thumb" (including this in a custom driver would be AMAZING). Still, after all that, tl;dr: It's worth the $20 and if you're reading this review then you should get it. But let's also hope they come out with an upgrade. I will probably buy several more of these and I'm considering the watering kit too.
Review: Works with Home Assistant. - I have two of these running in my front‑yard pots, and they work well as long as they can get a Zigbee signal. One is paired with a TUYA Zigbee hub and the other with the Home Assistant Connect ZBT‑1. I use rechargeable Ni‑MH batteries, and they last a reasonable amount of time. They report temperature, soil moisture, and battery level every few minutes. The temperature reading isn’t very accurate, and the moisture value is more of a reference than a precise measurement. In Home Assistant, I set up a notification when moisture drops below around 50%. During the summer, I use that reading to automatically run the sprinklers for 15 minutes. Soil density affects the moisture reading, so it’s worth checking that the value doesn’t change too much if you pull the sensor out and put it back in the ground. I’ve tried a bunch of capacitive soil‑moisture sensors, and these perform about as well as anything else I’ve tested. If you can get a Zigbee router outdoors, you’re good to go. I use USB‑powered devices indoors, but I’m sure these would work fine in the house too. The first one I bought has been running for over a year.

## Features

- Zigbee Hub Required: Compatible with standard Zigbee 3.0, including Home Assistant (ZHA & Z2M), Hubitat and SmartThings Aeotec. A Zigbee Hub is needed for optimal performance. NOTE: Not compatible with Alexa Echo Devices.
- Remote Monitoring and Automation: Receive real-time alerts on your smartphone, allowing you to take action anytime, anywhere, ensuring your plants get the right care. Integrated with smart home systems, these sensors enable automated watering schedules, so you can manage and control your garden's irrigation remotely, saving both time and effort.
- Reliable and Accurate: Equipped with a sensing probe for instant and accurate moisture readings, this meter is suitable for most environments, ensuring your plants receive the right amount of water. Consider Zigbee's signal range, better for indoor using.
- Capacitive Monitoring: Unlike traditional probes, capacitive sensors are less affected by soil salinity and pH, offering greater durability and a longer lifespan in various soil types. Suitable for various gardening places including farms, greenhouses, nurseries, gardens, and potted plants.
- More Smart Assistant Supported: With the Smart Bridge MZ1 (sold separately), integrate with Apple Home and Google Home to monitor plants and create automation routines via an app. Additionally, it supports software OTA (Over-The-Air) updates, allowing for effortless firmware upgrades.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DH25W72N |
| Batteries | 1 AA batteries required. (included) |
| Battery Description | Alkaline |
| Best Sellers Rank | #8,080 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #28 in Soil Meters |
| Brand | THIRDREALITY |
| Color | Green |
| Date First Available | September 14, 2024 |
| Item Weight | 2.4 ounces |
| Item model number | 3RSM0147Z |
| Manufacturer | Third Reality, Inc |
| Mounting Type | Tabletop |
| Product Dimensions | 7.1 x 1 x 1 inches |
| UPC | 850001595810 |
| Upper Temperature Rating | 100 Degrees Fahrenheit |

## Product Details

- **Battery Description:** Alkaline
- **Brand:** THIRDREALITY
- **Color:** Green
- **Item Weight:** 2.4 ounces
- **Mounting Type:** Tabletop

## Images

![THIRDREALITY Smart Soil Moisture Sensor,Zigbee hub Needed,Accurate Measure,Capacitive Probe,Moisture/Temperature Meter for Garden Planting,Compatible with Homey,Hubitat, SmartThings,Home Assistant - Image 1](https://m.media-amazon.com/images/I/51MxZBHGs0L.jpg)

## Questions & Answers

**Q: How to use the soil moisture sensor ？**
A: Insert the sensor into the soil, aligning the marking line with the soil surface for accurate measurement. Create automation or manually water the plant when soil moisture drops below a set value, based on your plant and soil conditions.

**Q: When the Third Reality Smart Soil Moisture Sensor paired with Hubitat, but can't see temperature and humidity states?**
A: Please change the device type to "Third Reality Soil Moisture Sensor" in Hubitat, then it should work properly. Note: Update the Hubitat system to latest version.

**Q: Does it compatible with Alexa Echo devices?**
A: No, it can not compatible with Echo devices. Alexa does not support humidity, so it is not recommended to use.

**Q: Why is the soil moisture and temperature sensor occasionally offline?**
A: If your soil sensor is located far from the hub, it may go offline. Consider adding some Zigbee repeater to enhance the Zigbee range, like Zigbee smart plugs, Zigbee smart bulbs, etc.

**Q: Why are the data from the Soil Temperature and Humidity Sensor different from regular temperature and humidity meter?**
A: This is because the measurement methods are different. The Soil Temperature and Humidity Sensor only detects soil surface temperatures for reference purposes only.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works. It's huge. Not an instant solution.
*by T***T on December 29, 2024*

I recently had a problem with root rot in my indoor Tea Rose. I'd been looking for a zigbee soil monitor for a while and my discovery of this lined up with my holiday shopping, so it seemed like the time to give it a try. The Good: Connects immediately to SmartThings, and so will also work with most other smart home ecosystems. Measures both temperature and "humidity". Waterproof (safe for outdoor use). Includes a battery. The Bad: What the description doesn't tell you - this thing is HUGE. Way bigger than the illustrations let on. The default SmartThings driver does not include battery level, but the device does report it. The ThirdReality Temp/Humidity driver includes battery, but only reports temperature OR humidity on the icon (you have to open the device in the app to see both readings). The Ugly: Digital soil meters are still not very common. This means there's no standards for measuring soil moisture and no standards for when to water various plants based on that digital reading. Humidity readings are reported very infrequently and take a while to update when the moisture level changes or if the meter is removed and replaced. I've had this for a couple weeks now. Overall I like it and would recommend, but it's not going to immediately solve all of your over/under watering problems. Set your expectations. It's not clear in the description or documentation how this device measures humidity. However, the design of the sensor post suggests it's measuring soil conductivity, like most analog moisture meters. It's also not clear how the reading is calibrated. And of course there are no instructions regarding what moisture levels are appropriate for what plants (though this is understandable, since ThirdReality is a tech company not a gardening company). What all of this means is that you'll have to do some science: Water according to your normal schedule and monitor the readings from this device in order to "calibrate" yourself. Once you've gone through a few watering cycles and seen how this reads, you can set your automations or alerts accordingly. Removing and replacing the sensor will alter its readings! I tested removing and replacing the meter. The reading went from 36% before to 0% removed and 10% after. I dug down a couple inches to confirm that the soil is still damp down below. This is likely just due to poor soil contact with the sensor probe, which will improve with watering and soil settling. This means that once you've place it and started your "calibration", it should stay put; removing it will require you to "recalibrate". For a version 2, I think they could reduce the size quite a bit if they tried. A smaller sensor would be nice, and most of the size is to accommodate the battery. I'd also like to see a version that could be externally or solar powered to reduce battery waste. And updating the ThirdReality ST driver to display both temp and humidity in the device thumbnail would be nice. But most of all, including a chart of "ideal water levels" for some common plants would elevate this substantially, making it a lot more user friendly for beginners or those trying to compensate for a "black thumb" (including this in a custom driver would be AMAZING). Still, after all that, tl;dr: It's worth the $20 and if you're reading this review then you should get it. But let's also hope they come out with an upgrade. I will probably buy several more of these and I'm considering the watering kit too.

### ⭐⭐⭐⭐ Works with Home Assistant.
*by R***D on January 6, 2026*

I have two of these running in my front‑yard pots, and they work well as long as they can get a Zigbee signal. One is paired with a TUYA Zigbee hub and the other with the Home Assistant Connect ZBT‑1. I use rechargeable Ni‑MH batteries, and they last a reasonable amount of time. They report temperature, soil moisture, and battery level every few minutes. The temperature reading isn’t very accurate, and the moisture value is more of a reference than a precise measurement. In Home Assistant, I set up a notification when moisture drops below around 50%. During the summer, I use that reading to automatically run the sprinklers for 15 minutes. Soil density affects the moisture reading, so it’s worth checking that the value doesn’t change too much if you pull the sensor out and put it back in the ground. I’ve tried a bunch of capacitive soil‑moisture sensors, and these perform about as well as anything else I’ve tested. If you can get a Zigbee router outdoors, you’re good to go. I use USB‑powered devices indoors, but I’m sure these would work fine in the house too. The first one I bought has been running for over a year.

### ⭐⭐⭐ Be Aware Of Where You Plan To Use This
*by R***O on April 14, 2025*

So I knew this was a zigbee device which is what I wanted. I have a sonoff ZBdongle-P. I put the soil moisture monitor in my raised garden after connecting it to home assistant. It paired with home assistant very easily. I would say I am about 60' from where my dongle is and so I moved one of my sonoff power plugs to get a node closer to this device. I am literally 10' from it but it doesn't use the sonoff power plug zigbee network. It never paired to it. I removed and readded it to home assistant but it would just lose connection. I had to buy a third reality hub, pair it to that wifi hub and then I got my monitoring working. I believe the device is not calibrated well at all but now that I know that, it works for me. I will buy others now that I have a hub and more into the ecosystem. For the money it's okay and will work for me but if you desire precise calibration expect to calibrate it yourself. This requires a hub as you can't do it via home assistant and to pair it to their app means you need a hub. These devices are inexpensive generally speaking but in reality it can get costly in order to use the device how you might intend due to distance or walls etc. I will be buying more of these so that says something I guess :).

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-20*