Features Digital display,easy reading,high precision. Light weight,small size,easy to carry. Standard fruit hardness unit display:kgf/cm2. The battery has over-load protection in case of short circuit and leakage of electricity. Two test mode:Peak hold and Real-time. Specifications Model：15；30 Measurement Range：0.2～15 kgf/cm2 (×105 Pa)；0.4～30kgf/cm2 (×105 Pa) Load scale value：0.01kgf/cm2 Precision：±1% Pressure needle diameter：Ø7.9mm Ø11.1mm Depth of pressure needle：10mm Power：3.7V lithium battery Charging time：4~6 hours Continuous usage time of battery：About 10 hours Battery life：≥300times Charger：Input：AC 220V 50/60HZ ；Output：DC 5V 1000mA Stability：Temperature drift：0.2uV/℃（0-60℃） Zero temperature drift：≤ 0.1%/8 hour/FS Work temperature：5℃～35℃ Transport temperature：0℃～60℃ Relative humidity：15％～80％RH Work conditions：No focus ,Non-corrosive in surroundings Net weight：About 260g Size：160mm×71mm×35mm Package 1 X Digital Fruit Sclerometer 1 X Pressure needle（∅11.1mm）match with 15kgf/cm2 1 X Pressure needle（∅7.9mm）match with 30kgf/cm2 1 X Manual 1 X Certificate and warranty card 1 X Certificate of inspection 1 X Charger(5V) 1 X Desiccant 1 X M6 screw 1 X M4*6 screw 1 X M4*8 screw