The Portable Pointer Fruit Hardness Tester -3 is a versatile tool designed for testing the hardness of fruits such as apple, pear, grape, and orange. This portable device provides accurate measurements to determine the firmness of fruits, ensuring quality and ripeness. It is a useful tool for fruit growers, farmers, and food quality inspectors. The -3 Fruit Hardness Tester is easy to use and portable, making it convenient for on-the-go testing. With its precise results, it helps in assessing fruit maturity, storage conditions, and overall fruit quality. Measuring diameter: 11mm/8mm. Accuracy: 0.1. Scale values: 11mm: 0.5-12kg/cm², 8mm: 1-24kg/cm². Depth of indentation: 10mm. Both soft and hard fruits can be measured. Fruit hardness refers to the pressure (N) that a unit area (S) of fruit can withstand from a force measuring spring, and their ratio is defined as fruit hardness (P). P = N/S. P – The hardness value of the tested fruit is expressed in Pa or kilograms per square meter. N – The force exerted by the force spring on the surface of the fruit, measured in Newtons or kilograms. S – The area of force on the fruit in square centimeters. Attention: When using a small pressure probe, read with the inner circle scale. When using a large pressure probe, read with the outer circle scale. Color: As shown. Material: Aluminum, stainless steel. Package Contents: 1 x Fruit hardness tester. Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. The measurement allowed error is +/- 1-3cm.