Automatic recognition of voltages / resistance, tested immediately upon startup, Novice users do not need to learn the curves and can use immediately → Suitable for home electricians and enthusiasts Directly measuring voltages and resistance, not need to frequently switches gears, improving work efficiency → suitable for maintenance engineers to quickly in complex environment Capable of measuring voltages within a frequency ranges of 40Hz~1kHz, meets the testing needs of various electrical equipment → suitable for professional electricians to use in different environment 380V phase loss detection function to ensures electrical, provide power to avoid equipment damage → suitable for industrial electrical maintenance and repair High sensitivity NCV function, safe measurement of live lines, effectively reduces the risk of electric shock and protects the personals of users → suitable for inspection by electricians to ensures operational