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RS485 Soil Moisture Sensor
Measures soil moisture as volume percentage using dielectric constant, with a range of 0–100% and accuracy of ±2% (0–50%) or ±3% (50–100%), outputting RS485 Modbus-RTU. Applicable to soil moisture monitoring, water-saving irrigation, greenhouses, grassland pastures, plant cultivation, and precision agriculture. The sensor has a 70 mm stainless steel probe, IP68 protection, and response time under 1 second.
- Moisture accuracy
- ±2% (0–50%), ±3% (50–100%)
- Moisture measurement range
- 0–100%
- Output signal
- 485 signal (Modbus-RTU)
- Power supply
- 4.5–30 V DC
- Measures soil moisture via dielectric constant as volume percentage
- RS485 Modbus-RTU output with configurable address and baud rate
- 304 stainless steel probes, IP68 waterproof for direct soil insertion
- Suitable for irrigation, greenhouses, precision agriculture, and scientific research
Specifications
TR05 technical data
| Parameter | Value |
|---|---|
| Power supply | 4.5–30 V DC |
| Maximum power consumption | 30 mA*24 V DC |
| Moisture measurement range | 0–100% |
| Moisture accuracy | ±2% (0–50%), ±3% (50–100%) |
| Output signal | 485 signal (Modbus-RTU) |
| Response time | <1 s |
| Probe length | 70 mm |
| Probe diameter | 3 mm |
| Probe material | 304 stainless steel |
| Sealing material | Epoxy resin (black flame retardant) |
| Cable length | Standard 2 m |
| Protection level | IP68 |
Applications
Where the TR05 is used
Ordering
Terms & how ordering works
- MOQ
- 1 pc (flexible, no minimum for most products)
- Lead time
- 2-3 days for in-stock items, 15-30 days for custom orders
- Warranty
- 12-month warranty on all products
- Shipping
- FOB Ningbo / CIF available
- 01
Send Requirements
Medium, range, output and quantity.
- 02
Quote in 12h
Matched model, price and lead time.
- 03
Pre-shipment Check
Every unit inspected against spec.
- 04
Ship FOB / CIF
Export documents handled for you.
Request a Quote
TR05 RS485 Soil Moisture Sensor
Sales engineer replies within 12 hours
Or WhatsApp +86-15958288207
TR05 questions
What ranges are available for the TR05?
What is the MOQ and lead time?
Can the TR05 be customized?
Do you manufacture this transmitter?
Need the right rs485 soil moisture sensor for your process?
Send the medium, range, output, and quantity. We will confirm the matching option and a FOB Ningbo quote.




