The unique patented optical system allows the unit to detect and spray weeds while not spraying bare ground. The Sensor is a self contained unit that has optical and electronic components needed to detect and spray weeds. It's a system designed to dramatically reduce herbicide usage. A complete system includes Sensor units, a Controller , tank, pump, filters, and the attendant plumbing. These kits provide Sensor units, the Controller , and cables.
Larger systems are available.
Patchen Inc. While the standard Sensor triggers an individual nozzle the same technology can be used to trigger a row of nozzles or a nozzle some distance from the sensor. When the Sensor detects a weed, the VDC 05 outputs an electronic signal to a solenoid valve supplied by the user. This solenoid valve then activates an external system, such as a spray nozzle or bank of spray nozzles. The VDC 05 is a replaceable cartridge unit.