The SparkFun Soil Moisture Sensor is a simple breakout for measuring the moisture in soil and similar materials. The soil moisture sensor is pretty straight forward to use. The two large exposed pads function as probes for the sensor, together acting as a variable resistor.

The more water that is in the soil means the better . Have you ever wanted your plants to tell you when they need watered? Or know how saturated the soil in your garden is?

With the SparkFun Soil Moisture Sensor , you can do just that! This tutorial will show you how to get started using the Soil Moisture Sensor as well as how to build your own soil moisture . Soil moisture sensors measure the volumetric water content in soil. Since the direct gravimetric measurement of free soil moisture requires removing, drying, and weighting of a sample, soil moisture sensors measure the volumetric water content indirectly by using some other property of the soil, such as electrical resistance, . Delta-T Devices specialises in soil moisture sensors. Our comprehensive range includes sensors suited to a wide range of applications and budgets.

The accuracy, stability and reliability of our soil moisture sensors has made them the preferred choice of thousands of researchers world-wide. The SM150T Soil Moisture Sensor measures volumetric soil moisture content with accuracy.

It offers precision and reliability at an affordable price. Spectrum offers a complete line of soil moisture sensors , either to work with our Weather Stations or our hand held reader. Find great deals on eBay for Soil Moisture Sensor in Automation Sensors. The Soil Moisture Sensor uses capacitance to measure the water content of soil ( by measuring the dielectric permittivity of the soil, which is a function of the water content).

Simply insert this rugged sensor into the soil to be teste and the volumetric water content of the soil is reported in percent. Then this is the place for you. The digital trigger level can adjusted by setting . Please use resistors when connecting the LEDs to your Arduino!

This Instructable is old. Data can then be logge stored . I have not had the time to update any of the information. You will find a lot of GREAT information in the comments please read them after reading the instructions. In this instructable I will show you how to connect the an . SoilWatch – capacitive soil moisture sensor that will allow you to measure water content in soil.

Designed and manufactured in EU. It will take your next DIY project to the next level. Also known as soil moisture sensors Soil water content indicates how much water is present in the soil.

It can be used to estimate the amount of stored water. Our soil moisture sensor measures soil mositure levels by capacitive sensing rather than resistive sensing like other sensors on the market. It is made of corrosion resistant material which gives it an excellent service life.

The amplitude of the signal which is generated by a reflected electrical signal is measured and converted to moisture content. Capacitance determines Ka by measuring the charge time of a capacitor, which uses soil as a dielectric medium. The capacitance sensor forms a pair of electrodes and the soil acts as a dielectric.

GSRuggedized Soil Moisture Sensor. The GSis a ruggedized version of our basic, no-frills soil moisture sensor. It accurately measures volumetric water content in soil or soilless media.