<p>The Irrometer Company has been in business since 1951 manufacturing soil water measuring, controlling, and sampling instruments used worldwide for scheduling irrigation. Their Irrometer tensiometers and Watermark soil water sensors are proven standards backed by decades of research and practical experience in the field. As the first company to produce commercially viable versions of this technology, they are the original name in soil water management and build that experience in to every product.&nbsp;</p>