... 9001 1.Can judge fruit's mature degree 2.GY-1, GY-2 and GY-3 three kind of models. Brief descriptionFruit Sclerometer ... (Fruit hardness Tester), this series includes GY-1 GY-2 and GY-3 three models, used to judge fruits’ maturity by ... ://www.agri-instrument.com/product/149.html Fruit hardness tester GY series