ELECTRONIC SOIL MOISTURE SENSORS

Brand	Owner (click to sort)	Address	Description
AQUASENTRY	MELNOR INC.	109 Tyson Dr Winchester VA 22603	Electronic soil moisture sensors for use with water timers for the purpose of cutting water supply to lawn sprinklers when sufficient ground moisture is detected;AQUA SENTRY;
VEGETRONIX	Vegetronix, Inc.	13940 S. 4000 W. Bluffdale UT 84065	Electronic soil moisture sensors and probes; soil moisture monitoring and reporting computer hardware and firmware;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A capacitive soil moisture sensor that is easy to install, does not require complex calibration, can sense moisture at a particular depth, can accommodate soils of different composition, does not alter soil densities, provides fast response to changes in moisture and provides stable long term use. The sensor comprising of a body (10) onto which is attached a plurality of first electrode (20) and a plurality of second electrode (30). A plurality of protective layer (50) of low dielectric constant material is applied over the electrodes and against the body (10) to provide a physical barrier to prevent a conduction path from the first electrode (20) to the second electrode (30) and to provide protection against physical damage. The first and second electrodes (20), (30), once inserted into the soil, forms a capacitor with the soil as the dielectric. A change in soil moisture causes the capacitance of the sensor to change.