RS485 Mini Soil Moisture, Temperature and EC Sensor: Modbus RTU, Soil and Substrate Monitoring, Bulk EC, Pore EC
Technical Specifications
Verified product data organized in one table
| Product Classification | |
|---|---|
| Product Profile | IoT Sensor |
| Environment / Deployment | Outdoor |
| Primary Use Cases | Agriculture and environmental monitoring |
| Network & Ecosystem | |
| Supported Network / Ecosystem | SenseCAP, Private LoRaWAN |
| Connectivity / Protocol | LoRaWAN, Bluetooth, RS485, Modbus RTU, Analog, GPIO |
| Power | |
| Power Method | Battery |
| Input Voltage | 3.0-28V DC |
| Physical & Environmental | |
| IP Rating | IP68 |
| Operating Temperature | -40-80°C |
| Dimensions | 20*11*95 mm |
| Detailed Technical Data | |
| Product Model | S-Temp&VWC&EC-05A |
| Sensor Description | RS485 Mini Soil Moisture, Temperature and EC Sensor |
| Output Interface | RS485 |
| Protocol | Modbus-RTU |
| Current Consumption | Measuring: 10 mA typical, 15 mA max @ 3–28 VDCStandby : 300 μA typical, 800 μA max @ 3–28 VDC |
| Power Supply | 3.0-28V DC |
| Cable Length | 2 meters |
| Sealing Encapsulation | Resin packaged plastic body; Robust epoxy encapsulation; |
| Installation | Rods fully inserted into the substrate; Ensure good substrate contact; |
| Range | -40-80°C |
| Accuracy | ±0.5°C (0-50°C), ±1.0°C (-40-80°C) |
| Resolution | 0.1°C |
| Volumetric Water Content (VWC) Range | 0-100% (air - water) |
| Volumetric Water Content (VWC) Accuracy | ±3% (0%-50%), ±5% (50%-100%) |
| Volumetric Water Content (VWC) Resolution | 0%-50%: 0.1%; 50%-100%: 0.5% |
| Apparent Dielectric Permittivity Range | 1-81 (air - water) |
| Apparent Dielectric Permittivity Accuracy | ±1 (1.00-40.00);±3 (40.00-81.00) |
| Apparent Dielectric Permittivity Resolution | 1.00-40.00: ±0.1; 40.00-81.00: ±0.5 |
| Temperature Compensation | 0-50°C |
| Mini Soil Moisture&Temp&EC Sensor | x1 |
| HSCODE | 9027899090 |
| USHSCODE | 9027894590 |
| EUHSCODE | 9027109000 |
| COO | CHINA |
Product Overview
The RS485 Mini Soil Moisture, Temperature and EC Sensor is an IP68-rated sensor for monitoring soil and soilless substrates. It measures volumetric water content from 0–100%, electrical conductivity up to 0–20 dS/m, and temperatures from -40 to 80°C. With a resin-sealed body, durable sensing rods, RS485 Modbus RTU communication, a wide 3.0–28 V DC power supply range, and low-power consumption, this sensor is designed for long-term and reliable soil monitoring. Built-in reverse polarity, TVS, and ESD protection enhance system stability, making it ideal for smart agriculture, greenhouse monitoring, irrigation management, hydroponics, and research applications.
The RS485 Mini Soil Moisture, Temperature and EC Sensor measures soil/substrate volumetric water content, temperature, bulk EC, pore EC, and apparent dielectric permittivity, with support for RS485 Modbus RTU communication. Its IP68 resin-sealed body, durable sensing rods, low-power 3.0–28 V DC operation, reverse power protection, and built-in TVS/ESD protection make it suitable for smart agriculture, greenhouse monitoring, irrigation control, hydroponics, horticulture, and soil research applications. This sensor is available with an RS485 Modbus RTU interface. It is compatible with the SenseCAP S2100 LoRaWAN® Data Logger , enabling low-power, long-range data transmission over LoRaWAN® networks. Multi-Parameter Soil/Substrate Measurement: Measures volumetric water content, temperature, bulk EC, pore EC, and apparent dielectric permittivity in soil or soilless substrates. This allows users to monitor moisture status, salinity/fertilizer concentration, and substrate condition with one compact sensor. RS485 Modbus RTU Output: Provides a digital RS485 interface with Modbus RTU protocol for stable data transmission and easy integration with data loggers, gateways, controllers, and agricultural monitoring systems. The sensor supports standard Modbus register access for reading measurement values and configuring communication parameters. Wide Measurement Ranges: Supports 0–100% volumetric water content, -40 to 80°C substrate temperature, and 0–20 dS/m bulk EC measurement. It also provides pore EC data through Modbus registers, making it suitable for soil moisture monitoring, irrigation control, and nutrient/salinity management. Low-Power, Wide-Voltage Operation: Operates from a 3.0–28 V DC power supply with low current consumption. The low-power design makes it suitable for battery-powered data loggers, remote field stations, and long-term agricultural monitoring deployments.
Policies & Guidelines
Warranty, shipping, and purchasing information
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- All prices are listed in US dollars (USD) unless otherwise stated.
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- After payment is confirmed, an electronic invoice is issued and made available in the Customer account.
- Hardware orders may be cancelled for a full refund before allocation, custom preparation, packing, or dispatch begins.
- If a bank payment is confirmed after the selected production batch has closed, the Customer may choose the next available batch or request a full refund.
- Approved refunds are initiated within seven business days and are returned through the original payment method, subject to the applicable verification requirements.
- Eligible hardware purchased directly from SenseCAP is covered by a 365-day warranty starting from the date of delivery.
- Warranty coverage is verified through the product serial number and the original sales record.
- Covered faults include verified manufacturing defects, internal component failures not caused by the Customer, delivery damage, and hardware received in a non-operational condition.
- Depending on the technical findings, the resolution may include remote diagnosis, replacement parts, repair, or an equivalent replacement.
- For approved warranty repairs, SenseCAP covers standard return shipping after the repair or replacement is completed.
- The Customer is responsible for shipping an authorized warranty return to the service location specified in the RMA case.
- Unauthorized firmware, third-party overclocking, or unsupported modifications may affect warranty coverage only where they caused the fault or prevent reliable diagnosis.
- Damage caused by improper electrical installation, power surges, liquid exposure, inadequate cooling, operation outside specified environmental limits, or tampering with the serial number may be excluded from warranty coverage.
- Covered repairs are targeted for completion within 10 business days after receipt at the authorized service location. If additional time is required, the Customer will receive a written update or an alternative resolution plan.
- Shipping charges are calculated at checkout according to the delivery destination and are shown separately from the product price.
- For retail orders of up to 10 devices, applicable import duties, taxes, and customs-clearance charges are handled by SenseCAP under the DDP delivery arrangement. The recipient is not required to pay these import charges separately.
- Orders of more than 10 devices are treated as commercial orders. Import duties, taxes, customs clearance, and related responsibilities are confirmed separately through the applicable Wholesale Quote.
- Every shipment is declared using an accurate commercial description, actual invoice value, and applicable customs classification.
- For in-stock hardware, the estimated dispatch timing is displayed before payment and begins after payment has cleared.
- Production batch pre-orders are dispatched according to the applicable SenseCAP batch-release schedule.
- The dispatch origin and shipping carrier are recorded with the order.
- Tracking information is provided once the shipment has been handed over to the carrier.
- Shipments are protected against accepted loss, theft, and physical transit damage up to the invoiced value, subject to the applicable carrier or insurance terms.
- Visible shipping damage should be reported within 48 hours of delivery. Concealed damage should be reported within 7 days. Customers should retain the original packaging, labels, and shipping materials while the claim is reviewed.
- If a shipment problem results from a packing or documentation error attributable to SenseCAP, an appropriate repair, replacement, or refund will be provided in accordance with the applicable policy.
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