Product Introduction
The MP-508E soil temperature, moisture, and salt sensor adopts a low-power design scheme to simultaneously measure three parameters: soil temperature, soil volume moisture content, and soil salinity.

Product Features
1. High measurement accuracy, fast response speed, good interchangeability, and high data transmission efficiency.
2. Good sealing performance, can be directly buried in soil for use, and is not corroded.
3. Real time temperature, humidity, and salt monitoring function can measure the temperature, humidity, and salt content of soil at different depths.
4. The soil has a relatively small impact and is widely used in various regions.
5. The electrical isolation of the equipment can resist complex interference situations on site, with an isolation voltage of up to 1500V.
6. The RS485 port can withstand electrical isolation of up to 5000VRMS (60s) and typical CMTI of ± 150kV/μ s.

Applicable fields
Suitable for water-saving agricultural irrigation, meteorological monitoring, environmental monitoring, greenhouses, flowers and vegetables, grassland pastures, soil rapid testing, plant cultivation, scientific experiments and other fields that require measurement of soil temperature, humidity and salinity.

Technical Specifications
measurement parameters |
Soil temperature, soil volumetric moisture content, soil salinity |
unit of measurement |
℃; %( m3/m3); μS/cm |
temperature range |
-30~70℃ |
Moisture range |
0~100% |
Salt range |
0~2000μS/cm |
measurement accuracy |
±0.2℃; Within the range of 0-50% (m3/m3), it is ± 2% (m3/m3); ±2% |
resolution |
0.1℃; 0.1%; 1μS/cm |
output signal |
RS485 (standard Modbus RTU protocol, default device address: 01) |
Power isolation parameters |
Isolation voltage 1500V |
RS485 isolation parameters |
Capable of withstanding a typical CMTI of 5000VRMS (60s) and ± 150kV/μ s |
power supply voltage |
5~24V DC |
scope of work |
-30℃~70℃ |
stabilization time |
1 second after power on |
response time |
<1 second |
sealing material |
ABS engineering plastic, epoxy resin, waterproof rating IP68 |
Cable specifications |
Standard configuration of 2 meters (customizable for other cable lengths, up to 1200 meters) |