China Factory for Small Rain Sensor - Three Temperature and Three Humidity Soil Moisture Recorder – Huacheng

Soil Moisture Sensor
1 Introduction
The soil moisture sensor is a high-precision, high-sensitivity sensor that measures soil temperature. Its working principle is that measuring soil moisture through FDR (frequency domain method) can correspond to soil volumetric moisture content, which is a soil moisture measurement method that conforms to current international standards. The transmitter has signal acquisition, zero drift and temperature compensation functions. This sensor is suitable for fields that need to measure soil moisture, such as meteorology, environment, agriculture, forestry, water conservancy, electricity, etc.
2. Features
High measurement accuracy, fast response and good interchangeability
With power reverse connection protection function
Epoxy resin casting, good sealing and corrosion resistance, can be buried in the soil for a long time
Small size design, easy to carry, easy installation, operation and maintenance.
Stainless steel probes guarantee longevity.
Reliable performance, less affected by soil salinity, suitable for various soil types
3. Technical parameters
⊙Accuracy: ±3%
⊙ Measuring range: 0-100%
⊙ Measurement stabilization time: 2 seconds
⊙Response time: <1 second
⊙Probe length: 5.5cm
⊙Probe diameter: 3mm
⊙Probe material: stainless steel
⊙ Circuit sealing: epoxy resin
⊙Working current: 25～35mA, typical value 28mA (voltage type)
⊙ Measurement frequency: 100MHz
⊙Measuring area: A cylinder with a diameter of 7cm and a height of 7cm surrounding the central probe with the central probe as the center
⊙ Lead length: 2.5 meters (can be customized)
★Voltage output type
Supply voltage: 7-24v DC
Output signal: 0.4-2v or 0-2v
Humidity value=(output voltage-0.4)/1.6*100-40 or output voltage/2*100-40

Soil temperature sensor
1 Introduction
The soil temperature sensor is a high-precision, high-sensitivity sensor for measuring soil temperature. Its working principle is to read the temperature value through a high-precision digital temperature chip. The transmitter has signal acquisition, zero drift and temperature compensation functions. This sensor is suitable for fields that need to measure soil temperature, such as meteorology, environment, agriculture, forestry, water conservancy, electricity, etc.
2. Features
High measurement accuracy, fast response and good interchangeability
Easy installation and simple operation
With power reverse connection protection function
Epoxy resin casting, corrosion resistance
3. Technical parameters
⊙Accuracy: ±0.2℃
⊙Measuring range: -40℃～60℃
⊙ Lead length: 2.5 meters (can be customized)
⊙ Circuit sealing: epoxy resin
⊙Stable time: 500ms after power-on
⊙Power consumption: normal 20mA, peak 50mA
★Voltage output type
Supply voltage: 7-24v DC
Output signal: 0.4-2v or 0-2v
Temperature value=(output voltage-0.4)/1.6*100-40 or output voltage/2*100-40