RS485 Soil Temperature, Moisture, EC Sensor for Climate Control in Greenhouses (IP68, 5-30V, Arduino Compatible)
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Description
This industrial-grade soil sensor delivers real-time monitoring of soil temperature, moisture, and electrical conductivity over MODBUS-RTU via RS485. Housed in a waterproof IP68 enclosure with a wide 5V to 30V input range, it is ideal for smart agriculture projects, greenhouse automation, and environmental monitoring with microcontrollers like Arduino.
Industrial MODBUS-RTU interface
The sensor communicates over an RS485 bus using standard MODBUS-RTU protocol for robust data transmission over long distances. It easily pairs with an Arduino Uno via a TTL-to-RS485 expansion board for quick automation setup.
Rugged 316 stainless steel probe
Constructed with corrosion-resistant 316 stainless steel electrodes and sealed in black flame-retardant epoxy resin, the sensor resists rust, salts, and electrolysis. Its IP68 waterproof rating ensures reliable performance during long-term soil burial.
Built-in automatic temperature compensation
Electrical conductivity readings feature memory-based automatic temperature compensation spanning 0°C to 50°C. This maintains consistent measurement accuracy across changing environmental conditions and soil temperatures.
Proper installation and soil management
Tracking moisture, temperature, and electrical conductivity helps prevent under-watering, root hypoxia, and salinity-induced nutrient lockout. The compact 123 x 45 x 15 mm form factor allows straightforward insertion directly into crop beds or potting substrates.
Wide range of field applications
Designed for diverse agricultural tasks, this sensor is suitable for smart farming in rice, maize, and soybean fields, commercial greenhouses, pastures, and grain storage. It also serves scientific research setups measuring moisture and temperature across particulate materials.
Key technical specifications
The unit operates on 5V to 30V DC with a 2-metre cable, measuring moisture from 0% to 100%, temperature from -40°C to +80°C, and conductivity from 0 to 20000 us/cm.
Downloads & documentation
Specifications
| Power supply voltage | DC5-30V |
| Power consumption | 0.7W@24V |
| Output mode | RS485 |
| Detection parameters | Temperature, Humidity, Electrical Conductivity (EC) |
| Measuring range | 0-100% |
| Resolution | 0.1% |
| Accuracy | 0-50%@±2%, 50-100%@±3% |
| Temperature compensation | memory temperature compensation, compensation range 0-50°C |
| Protection level | IP68 |
| Probe material | anti-corrosion special electrode |
| Sealing material | black flame retardant epoxy resin |
| Working temperature | -40°C~+60°C |
| Cable length | 2m |
| Size | 123*45*15mm |
In the box
| RS485 Soil Sensor (Temperature&Humidity&EC) | 1 |
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