NTech Industries Inc., manufacturer of the patented GreenSeeker technology, has added three new products to its industry-leading line of optical sensing devices.

The new products include the GreenSeeker RT200-4 Variable Rate Application and Mapping System. This new four-sensor system retains all of the features and benefits of the flagship six-sensor GreenSeeker RT200 system, but is designed and priced for applicators 60 feet wide and under. The RT200-4 has a suggested list price of $18,500.

The GreenSeeker RT150-3 Mapping System uses three sensors and is designed to produce high quality real-time vigor (NDVI) maps at an affordable price. The system is fully upgradeable to RT200 variable-rate capabilities. The RT150-3 Mapping System has a suggested list price of $13,000.

The new GreenSeeker RT Commander Pro Software Upgrade allows historic field information and real-time data to be combined to optimize the prescription rate for any predetermined field area. Management zone maps delineated from historic field knowledge are imported into the RT Commander Pro software as a background map to enhance, restrict or even override the real-time GreenSeeker rate recommendations. The update is available for 2009 on a limited basis.