Soil Water Potential Sensor, -5~-100kPa

Name: Soil Water Potential Sensor, -5~-100kPa
Brand: Such.com
SKU: SUCH-SOIL-SWP
Price: 299.99 USD
Availability: InStock
Rating: 5.0 (1 reviews)

1 review(s) | Add your review

SKU: SUCH-SOIL-SWP

$299.99

● Measuring range -5 ~ -100 kPa ● Resolution 0.1 kPa ● Power supply 5-30V DC ● Protection grade IP68

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Overview
Specs
Application
FAQ
Reviews

Overview

Soil water potential sensor is designed for precise soil moisture potential monitoring in agricultural and environmental applications. It operates on a 5–30 V DC power supply and provides stable RS485 (ModBus) output. SUCH soil sensor offers a measuring range of -5 to -100 kPa with 0.1 kPa resolution, supporting real-time data transmission and long-term field use. Its IP68-rated design ensures reliable performance in outdoor soil monitoring and irrigation management systems.

Feature

Accurate Measurement and Quick Response: Utilizes advanced sensing technology with built-in sensitive components that interact with soil moisture to establish an energy balance, ensuring precise and reliable measurements.
High Precision and Stability: Provides strong stability and high measurement accuracy, maintaining consistent performance in varying field conditions.
IP68 Waterproof and Durable Design: Features a sealed construction with IP68 protection rating, ideal for long-term outdoor monitoring and research applications.
Strong Anti-Interference Performance: Operates reliably under fluctuating temperature and humidity conditions, maintaining stable data output even in complex outdoor environments.
Compact and Easy Installation: Soil water potential sensor designed with a compact body for convenient installation, transportation, and deployment in diverse agricultural or environmental setups.
Reliable and Efficient Operation: Engineered for fast setup and high efficiency, minimizing environmental interference during measurement and ensuring real-time monitoring.
Free RS485 Configuration Software: Comes with complimentary RS485 configuration software for easy setup and data management, allowing users to conveniently view and analyze measurements.

Dimension

Soil water potential sensor size

Wiring Instructions

The wide voltage power supply supports an input range of 10–30V.

When connecting RS485 signal wires, ensure that the A and B lines are not reversed.
For multiple devices on the same bus, make sure that their addresses do not conflict.

Wire Color	Description	Note
Brown	Power Positive	10~30V DC
Black	Power Negative	Power Ground
Yellow	485A	485-A
Blue	485B	485-B

Detail

Specs

Power Supply (Default)	5-30V DC
Maximum Power Consumption	0.25W (at DC12V)
Operating Temperature	-40°C ~ +60°C
Measuring Range	-5 ~ -100 kPa
Resolution	0.1 kPa
Accuracy	±(10% of reading + 2 kPa)
Protection Grade	IP68
Default Cable Length	2 m (customizable upon request)
Dimensions	4515123 mm
Output Signal	RS485 (ModBus protocol)

Application

Scientific Irrigation

Agricultural Production Management

Ecological Environment Research

FAQ

Q1: How does this sensor differ from a regular soil moisture sensor? ❯

While a soil moisture sensor measures the volumetric water content, the soil water potential sensor measures the energy state of water in the soil. This makes it more suitable for evaluating plant water stress and optimizing irrigation timing.

Q2: Can the sensor be used outdoors for extended periods? ❯

Yes. It features an IP68-rated waterproof design, making it suitable for long-term outdoor use in agricultural fields, greenhouses, and research environments without damage from moisture or dust.

Q3: Can it be integrated into an automated irrigation system? ❯

Yes. The sensor’s RS485 ModBus output allows integration with smart irrigation controllers, enabling automatic adjustment of irrigation cycles based on soil water potential readings.

1 review(s)

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From: Jeffrey | Date: 5/25/2026 12:46 AM

Better Irrigation Insight

After trying a couple of basic soil moisture tools, I decided to switch to a soil water potential sensor for more meaningful data. This one has been working well in my drip irrigation setup.
I installed two sensors in different areas because soil conditions vary more than I realized. The data helped me notice one section was staying wetter for much longer, which explained some plant stress I’d been seeing.
It took a little time to understand the readings, but once I got familiar with it, it became a really useful tool. Feels more like a long-term monitoring device than a gadget.

Soil Water Potential Sensor, -5~-100kPa

Feature

Dimension

Wiring Instructions

Detail

Scientific Irrigation

Agricultural Production Management

Ecological Environment Research

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