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SM222 series soil moisture temperature sensor
1. Measure the soil volumetric moisture content within a capacity range of 200cm3 around the probe
Product details
Key Features:
1. Measure around the probe200cm3Soil volume moisture content within the capacity range
2. ·Design of 100MHz Circuit for Soil Moisture Sensor
3. ·Low sensitivity in high salinity and cohesive soils
4. ·High protection (IP68), can be buried in soil for a long time for use
5. ·Wide voltage supply, non-linear correction, high accuracy, and high consistency
6. ·Small size, light weight, easy installation
7. Lightning protection, cutoff interference design, strong anti-interference ability
8. Reverse wiring and overvoltage protection, current limiting protection
technical indicators·
l ·Sensor Principle Frequency domain reflectometry (FDR)
l·Measurement parameter: Soil volumetric moisture content
l·Measurement range: Dry saturated moisture content
l·Moisture accuracy:<± 0.03 m/m (± 3%), calibrated<± 0.02 m/m (± 2%)
l·Temperature range: 0-50 ℃
l·Temperature accuracy: ± 0.5 ℃
l·Output signal: 4-20mA, RS485 (Modbus RTU protocol), 0-1VDC, 0-2.5VDC
l·Supply voltage: 5-24VDC (current output 9-36VDC)
l·Resolution: 0.1%
l·Measurement time: ＜ 500ms
l·Operating environment: Outdoor, suitable ambient temperature is 0-45 ℃
l·Working current: 45-50mA, with temperature<80mA
l·Cable length: 5 meters as standard
l·Shell material: ABS engineering plastic
l·Probe material: 316 stainless steel
l·Gross weight: 500g
l·Protection level: IP68
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