Table of Contents Modern agriculture is already operating at a data driven and automated level, where irrigation, greenhouse control, and field management are increasingly executed
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Soil Moisture Sensor
Soil sensors are an important tool for detecting soil health, which can reflect the current soil moisture, temperature, salinity, or fertility in real-time. Provide data support for soil moisture monitoring, agricultural irrigation, and forestry protection industries. We offer soil moisture sensor, soil temperature and humidity sensor, soil temperature moisture and EC sensor for you choose
- Model: RS-SD-*-TR-1-EX
- MOQ: 1 PCS
- Delivery date: within 24 hours
- Price: $19~$29
Types - Soil Sensors
Renke soil moisture sensor is a high-precision sensor for measuring soil moisture. The working principle is to measure the dielectric constant of the soil, which can measure the volume percentage of soil moisture. The soil moisture measurement method conforms to international standards and is suitable for various soils. We not only provide customers with a wide range of soil sensors but also offer a free cloud platform that allows you to conveniently manage sensor data from different measurements.
Soil moisture sensor
The soil moisture sensor(RS-SD-*-TR-1-EX) is the most common device to measure soil moisture content. All connection parts are manufactured with a strict process to ensure waterproof and dustproof protection, guaranteeing that the measuring elements are shielded from moisture and salts in the soil. The housing is fully waterproof, allowing the sensor to be buried in the soil for long-term monitoring, with a protection rating of IP68. Soil moisture measurement area: within a cylinder with a radius of 7cm centered on the central probe. The soil moisture sensor offers RS485, 4-20mA, 0-5V, 0-10V or USB output types for choose.
Soil temperature and humidity sensor
Soil temperature is closely related to crop growth, fertilizer decomposition and organic matter accumulation. Our soil temperature and humidity sensor(RS-WS-*-TR-1-EX) can measure the two elements of soil temperature and humidity at the same time. Like the soil moisture sensor, it offers high accuracy, fast response, and minimal influence from soil salinity, making it suitable for various soil types. The vacuum potting process ensures long-term resistance to electrolysis and corrosion. Our soil temperature and humidity sensors have RS485, 0-5V, 0-10V, 4-20mA and USB output types for choose.
3 in 1 soil sensor
The soil temperature humidity and EC sensor(RS-ECTH-*-TR-1-EX) is an important tool for observing and studying the occurrence, evolution, improvement, and water and salt dynamics of saline soil. The 3 in 1 soil sensor creatively measures salinity, moisture, and temperature together, which greatly facilitates the customer’s systematic assessment of soil conditions. By measuring the dielectric constant of the soil, it can directly and stably reflect the true moisture content of various soils. At present, our this 3 in1 soil sensor only have RS485 and USB output.
Soil sensor datasheets
| Power supply | DC 4.5~30V (RS485), DC 10~30V (analog) | |
| Operating temperature | -40℃~+60℃ | |
| Core chip temperature resistance | 85℃ | |
| Soil moisture parameters | Range | 0-100%RH |
| Accuracy | ±2% within 0-50%RH, @ (brown soil, 30%, 25℃) ±3% within 50-100%RH, @ (brown soil, 60%, 25℃) | |
| Protection level | IP68 | |
| Probe material | 304 stainless steel | |
| Sealing material | Black flame-retardant epoxy resin | |
| Default cable length | 2 meters, cable length can be customized according to requirements | |
| Dimensions | 45*15*123mm | |
| Output signal | RS485/4-20mA/0-5V/0-10V | |
| Power supply | DC 4.5~30V (RS485), DC 10~30V (analog) | |
| Operating temperature | -40℃~+60℃ | |
| Core chip temperature resistance | 85℃ | |
| Soil moisture parameters | Range | 0-100%RH |
| Resolution | 0.1% | |
| Accuracy | ±2% within 0-50%RH, @ (brown soil, 30%, 25℃) ±3% within 50-100%RH, @ (brown soil, 60%, 25℃) | |
| Soil temperature parameter | Range | -40℃~80℃ |
| Resolution | 0.1℃ | |
| Accuracy | ±0.5℃(25℃) | |
| Protection level | IP68 | |
| Probe material | Anti-corrosion special electrode | |
| Sealing material | Black flame-retardant epoxy resin | |
| Default cable length | 2 meters, the cable length can be customized according to requirements | |
| Dimension | 45*15*123mm | |
| Output signal | RS485/4-20mA/0-5V/0-10V | |
| Power supply | DC 4.5~30V | |
| Maximum power consumption | 0.7W(24V DC powered by) | |
| Operating temperature | -40℃~+60℃ | |
| Soil moisture parameters | Range | 0-100%RH |
| Resolution | 0.1% | |
| Accuracy | ±2% within 0-50%RH, @ (brown soil, 30%, 25℃) ±3% within 50-100%RH, @ (brown soil, 60%, 25℃) | |
| Soil temperature parameters | Range | -40℃~80℃ |
| Resolution | 0.1℃ | |
| Accuracy | ±0.5℃ (25℃) | |
| Conductivity parameter | Range | 0-20000μS/cm |
| Resolution | 10μS/cm | |
| Accuracy | 0-10000μS/cm is ±3%；10000-20000μS/cm is ±5% | |
| Conductivity temperature compensation | Built-in temperature compensation sensor, compensation range 0-50℃ | |
| Protection class | IP68 | |
| Probe material | Anti-corrosion special electrode | |
| Sealing material | Black flame retardant epoxy resin | |
| Default cable length | 2 meters, cable length can be customized | |
| Dimensions | 45*15*123mm | |
| Output signal | RS485 (Modbus protocol) | |
About - Soil Moisture Sensor
Features
- The soil moisture sensor adopts TDR measurement technology, featuring high accuracy and fast response. It is equipped with a low-power MCU and high-quality operational amplifier for stable signal transmission and excellent interchangeability.
- It is less affected by soil salinity, suitable for various soil types.
- The overall design is fully sealed and resistant to acid and alkali corrosion. It can be buried in soil for long-term monitoring.
- The probe of the soil sensor is made of austenitic 316 stainless steel, with a length of 70 mm and a diameter of 3 mm. It can withstand strong external impacts and is not easily damaged.
Advantages
Why choose Renke soil moisture sensor? Here is the advantages of soil moisture sensor buy from Renke.
Top brand
Renke is a manufacturer with 15 years experience. Top brand. Can provide you with professional technical support and solutions. Provide a free data platform for you to view the data. Provide customized services and support customers’ secondary development.
Easy use
Our soil moisture sensor is simple to use. It can be directly inserted into the soil to measure the current soil moisture content, or it can be connected to a soil irrigation system and used with a controller to control soil irrigation. Can be buried in the soil for long-term measurement.
Cheap price
The soil moisture sensor price is $19, the soil temperature and humidity sensor price is $21, and the soil temperature and humidity conductivity 3 in 1 sensor price is $29. Save your cost and provide you with the best price. Welcome to inquiry us.
More types
We have a variety of soil sensors that can measure soil temperature, moisture, pH or EC and other elements. Meet the measurement needs of different places. Provide rs485 and analog signal output modes. Easy to calibrate. Long using life.
FAQs - Soil Moisture Sensor
How to install a soil moisture sensor?
Since the electrodes directly measure the electrical conductivity (EC) of soluble salt ions in the soil, the soil volumetric water content must be higher than approximately 20% for the soluble ions to correctly reflect the soil’s conductivity. For long-term monitoring, measurements taken after irrigation or rainfall are closer to the true soil conditions.
For rapid measurements, water can be added to the target soil area first, and the measurement should be carried out after the water has fully infiltrated.
When measuring in hard soil surfaces, drill a pilot hole (diameter smaller than the probe diameter), then insert the sensor into the soil and compact the soil around it before taking measurements. The sensor should be protected from strong vibrations and impacts, and must not be struck with hard objects.
Since the sensor is encapsulated in a black housing, it may heat up rapidly under direct sunlight (above 50 °C). To prevent high temperatures from affecting temperature measurement accuracy, please take measures for shading and protection when using the sensor in the field.
What is the output of the soil moisture sensor?
Our company provides customers with five output modes: RS485, Lora, 4-20ma, 0-5v, 0-10v, and USB.
Where to place the soil sensor?
- Place the fixed sensor between the plants at the desired depth.
- Mark the place where the sensor is placed to prevent the sensor from being damaged.
- Do not install the sensor near the pivot wheel track, and make sure that the sensor is in direct contact with the soil and has minimal interference to the soil during the installation process.
How to view the data measured by the soil sensor?
You can download our -K software or use the cloud platform provided by our company for free.
How to wire a soil moisture sensor?
RS485 Output Type:
Brown wire — Power positive (4.5–30V DC)
Black wire — Power ground
Yellow wire — 485-A
Blue wire — 485-B
Analog Output Type:
Brown wire — Power positive (10–30V DC)
Black wire — Power negative (Temperature signal negative / Moisture signal negative)
Blue wire — Temperature signal positive
Yellow wire — Moisture signal positive
How long does a soil moisture sensor last?
With proper installation and maintenance, high-quality sensors can last 3–5 years or longer, depending on soil conditions and usage.
What are the uses of soil moisture sensors?
The soil moisture sensor is suitable for soil moisture monitoring, scientific experiments, water-saving irrigation, greenhouses, flowers and vegetables, grassland pastures, soil rapid testing, plant cultivation, sewage treatment, precision agriculture, and other occasions. Soil moisture sensor can be combined with wind speed sensor, wind direction sensor, rain gauge, solar radiation shield, rain and snow sensor, UV sensor, solar radiation sensor, sunlight sensor, atmospheric pressure sensor, etc. to form a weather station monitoring system.
How to view the data monitored by the soil sensor?
For RS485 output soil sensors, you can use an RS485-to-USB converter. Through the converter, the data can be uploaded to our software for real-time monitoring.
Alternatively, users may use their own RS485-to-TTL/232 module to connect RS485 output or analog output soil sensor, and then upload the data to a microcontroller or PLC for viewing.
What is included in the packing list?
Soil moisture sensor × 1
Certificate of conformity and warranty card
How to download the pdf manual of the soil sensor?
This product is independently developed and produced by our company. To ensure the privacy of the product technical parameters, please contact us to obtain the product manual.
Popular Soil Sensors
In order to measure different soil and different soil parameters, we have developed a variety of soil sensors. These soil sensors are cheap price and easy to operate. Please choose your best sensor.
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