Matric potential responder improvements
Method and apparatus for irrigation control
Method and apparatus for measuring water content
Method and device for automatic irrigation
Moisture and pressure sensitive fluid control circuit
Moisture monitor and control system
Moisture monitoring system
Moisture sensing switch
Moisture sensor
Moisture sensor
Moisture sensor and control system for sprinklers and method...
Moisture sensor and irrigation control system
Moisture-actuated apparatus for controlling the flow of water
Moisture-responsive valve
Moisture-responsive valve assembly
Multiplexed automatic control system