MP-508B SOIL HUMIDITY SENSOR Weather Sensor

Frequency domain reflectometry (FDR) is a method to measure the soil moisture content by measuring the frequency change caused by the change of the dielectric constant of the sensor in the soil, which is transformed into the voltage or current relationship corresponding to the soil moisture content. It has the characteristics of high accuracy, fast, accurate, continuous fixed-point measurement, no radioactivity and no disturbance to soil.

TECHNICAL SPECIFICATION

◆Principle：FDR

◆Structure: 4-pin

◆Measuring range：0~100%((m3/m3))

◆Response time：＜1s

◆Accuracy：±2%(0～50%(m3/m3),25℃)

◆Measurement area：90% of the influence is in the cylinder with diameter of 2.5cm and ◆length of 6cm around the central probe

◆Sealing material：ABS( abrasive tools)

◆Size：133*40mm(probe：60mm)

◆Standard line length：3m

◆Stabilization time：About 10s after power on

◆Farthest lead wire：current200 m,RS485 100m

◆Ingress Protection：IP65

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