digital soil hardness meter

Mode of display :LCD display(Has backlight function, suitable use in the night-time Test range: 0~500N/cm2 (Kg, Newton and pounds three units can be automatically converted in the equipment) Test depth/ Stored datum: 0~450mm / 896 Power Charging Power Supply: 220V/AC, continuous working 6-8hours Resolution: 1N/word Stability/ Temperature Drift:0.2uV/℃(0-60℃);Zero drift: :≤0.1%/8H/FS / 0~+60℃ Environment humidity: ≤80% Power supply: Nickel cyanide on the 5th Battery / 220V AC charge 8 ~ 12 hours