... GY-1, GY-2, GY-3 three kinds of types, in orderto measure the hardness of fruits such as the apple, pear, strawberry ... , grape, etc.It is suitable for the scientific research department of fruit tree, fruit company,the fruit tree farm, units such ... store, the export is transported andprocessed, etc., the detection of the hardness of fruit, thus judge the ripenessof the fruit. This instrument ...