GY-M30 fruit hardness penetrometer is a professional agricultural testing instrument with measuring range 0.4 to 30 Kgf/cm² and test precision ±2%. It is designed for testing firmness of hard fruits such as mangoes, kiwis, avocados and persimmons to judge maturity and picking time. Built-in high-sensitivity pressure sensor ensures consistent, repeatable test results, clear dial scale offers straightforward readings without complex conversion. Ergonomic handheld body supports one-hand field sampling, matched with wear-resistant replaceable metal probe for long service life. Robust anti-drop ABS housing adapts to complex orchard environments. Lightweight and easy to carry for farms, fruit processing factories and agricultural labs. It helps standardize fruit harvesting, storage and transportation. With stable accuracy and favorable bulk price, it is a necessary measuring device for global agricultural equipment suppliers.