ALEXANDRIA, Va., June 10 -- United States Patent no. 12,292,432, issued on May 6.
"Soil testing instrument" was invented by Zhihua Gan (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A soil testing instrument includes a host unit and a tester. The tester is connected to the host unit through wireless communication. The wireless communication connection is configured to achieve wireless communication between the host unit and the tester. The host unit and the tester are connected through the wireless communication. After the tester is automatically matched with the host unit, the tester can transmit tested data to the host unit through the wireless communication. This achieves remote monitori...