... -2 GY-3 2.Fruit penetrometer,Fruit Sclerometer,Fruit Hardness Tester 3.Dual Range Dual Range Fruits Sclerometer Fruit ... penetrometer, Fruit Sclerometer, Fruit Hardness Tester GY-3 Specification: Fruit Sclerometer (Fruit hardness Tester), this series includes GY-1 ... GY-3 three models, used to judge fruits’ maturity by testing hardness of fruit such as apple, pear, watermelon, banana and ...