The GrowBoss Nutrient probe does double duty. This probe measures TDS while auto sensing temperature when immersed in your nutrient solution, sending this data to the GrowBoss indicator. The GrowBoss Nutrient/Temperature probe has a 6 foot cord and connects easily to the GrowBoss indicator via a USB style connector. These probes are built tough and will last for many years.
(Special Order) 4-6 week lead time