GY‑30 φ7.9mm Digital Hardness Tester Portable Sclerometer High Accurate Fruit Penetrometer Item Type: Hardness Tester Model: GY-30 Material: ABS Power Supply: 3.7V rechargeable li battery (Battery Included) Application: Fruit hardness measurement Battery Capacity: 500mAh Product Model GY-30 Range 0.4~30 Kgf/cm² (x10 to the 5th power/Pa) Head Value 2#：φApprox. 7.9mm / 0.3in Load Scale Value 0.01Kgf/cm² Accuracy ±1% Depth Of Indenter Approx. 10mm / 0.4in Charging Time 4~6 Hours Battery Continuous Use Time About 10 Hours Battery Life ≥300 Times Stability Temperature Drift: 0.2uV/℃ (0~60℃) Zero Drift: ≤0.1%/8 Hours/FS Operating Temperature 5℃~35℃ Transport Temperature 0℃~60℃ Relative Humidity 15%~80%RH Working Environment No seismic sources and corrosive media around