The instrument has the advantages of high accuracy, easy operation and easy carrying. It can be used together with the special test bench to improve the measurement accuracy.(Special note: the scientific use of the measurement range of 10%-100% of the full range, the measurement department recommends not to use less than 1% of the full range part.) Features: 1. Three measurement modes can be switched freely (real-time, peak, first peak value). 2. Standard fruit hardness unit Kgf/cm² display. 3. The upper and lower limits can be set to do statistical analysis, and the buzzer can be alarmed by setting the upper and lower limits beyond the limit. 4. Automatic shutdown function: can set the automatic shutdown time, in the case of a long time no operation automatically shut down to achieve power-saving effect. 5. Automatic backlight and buzzer alarm function. Specifications: Model: GY-M15 / GY-M30 (Optional) Range: GY-M15: 0.2~15Kgf/cm² (x10^5 Pa) GY-M30: 0.4~30Kgf/cm² (x10^5 Pa) Pressure Head Diameter: GY-M15: Φ11.1mm GY-M30: Φ7.9mm Load Division Value: 0.01Kgf/cm² Accuracy: ±2%(10% to 100% of the full range) Insertion Depth of Indenter: 10mm Power Supply: 2 * 1.5V AAA Dry Battery(Not included) Working Temperature: 5℃-35℃ Transportation Temperature: -10℃-60℃ Relative Humidity: 15%~80%RH Work Environment: No focal source and corrosive media around Material: ABS Item Size: 120 * 60 * 31 mm / 4.72 * 2.36 * 1.22 inch Item Weight: 173g / 6.1oz Package Size: 18.2 * 13.7 * 4.6 cm / 7.16 * 5.39 * 1.81inch Package Weight: 454g / 16.01oz Package List: 1 * Fruit Hardness Tester 1 * Press Foot 1 * Hexagon Nut 8 * Hexagon Cylindrical Screws 1 * User Manual (English)