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SM1 soil temperature and humidity sensor

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image/sm1 副本

SM1 soil temperature and humidity sensor

A high-frequency FDR principle soil moisture sensor, developed and manufactured for measuring the vertical section of soil moisture and soil temperature. The sensor is 30cm to 150cm long, with a soil moisture measurement point every 10cm and a soil moisture measurement point every 30cm. A 150cm long sensor can measure 15 layers of water content and 5 layers of soil temperature. The SDI-12 Pentax interface can be connected to any ADTU configured RTU with SDI-12 interface. Measurement principle The SM1 soil moisture probe is very convenient to install and use, and provides soil moisture and temperature monitoring based on capacitance measurement. Press no
image/sm1 副本
Product description
Technical indicators
A high-frequency FDR principle soil moisture sensor, developed and manufactured for measuring the vertical section of soil moisture and soil temperature. The sensor is 30cm to 150cm long, with a soil moisture measurement point every 10cm and a soil moisture measurement point every 30cm. A 150cm long sensor can measure 15 layers of water content and 5 layers of soil temperature. The SDI-12 Pentax interface can be connected to any ADTU configured RTU with SDI-12 interface.
 
 
 
Measuring principle
 
The SM1 soil moisture probe is very convenient to install and use, and provides soil moisture and temperature monitoring based on capacitance measurement.
 
Soil moisture and temperature are measured at different depths, a soil moisture probe is placed every 10 cm, and a temperature sensor is placed every 30 cm. Multi-layer moisture temperature integrated measurement, tubular shell, diameter Φ32mm, supports tubular and mud installation, easy and fast installation. Using SDI-12 communication protocol, simple wiring.
 
According to the length of the sensor, there are 30, 60, 90, 120 and 150 cm. Users can choose different lengths according to their needs.
 
A maximum of 5 temperature sensors are available. Their temperature sensors are located at 15 cm, one every 30 cm, so the others are at 45, 75, 105, and 135 cm, respectively.
 
The device uses the sdi-12 protocol and comes with a 5m cable.
 
 
 
Application range
 
  • irrigation

  • Landfill

  • Geological observation

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Technical index
Outer tube diameter: Φ32 mm
Top hat diameter: Φ82 mm
Protection level: IP67
output signal: SDI-12
temperature range: -55-70℃
Sensor material: Anti-ultraviolet and anti-shrink PVC
Mounting arm: Aluminum and plastic brackets
Connector: 5m cable, 7 pin Pentax waterproof connector
powered by: 5.6…12VDC
Soil moisture:  
Measuring range: 0-100%
Resolution: 0.1%
Accuracy: ±2%
Measurement methods: capacitance
Number of sensors: 1 sensor every 10 cm
Soil temperature: -55…70℃
Resolution: 0.125℃
Accuracy: ±0.5℃(0…70℃)
Temperature Sensor: Up to 5, every 30 centimeters, at 135, 15, 45, 75, 105
Available sensor length: 30, 60, 90, 120, 150 cm

 

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