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● HD black EBTN screen!● Integration design inside and out!● 9999 counts high precision measurement! Features:The 9999counts is a pocket-sized 3 9/10-bit automatic digital instrument. It has the features of stable performance, high precision, high reliability ,clear readings, and overload protection . With AAA 1.5V battery-driven,the instrument uses a large-screen LCD display,boost power supply, even in the 2.3V low battery edge, it can guarantee the backlight high brightness, It is easy to carry, is a vast number of users extremely like the instrument. This series of instruments can be used to measure the DC voltage and AC voltage DC current and AC current, resistance, capacitance diode,continuity test, frequency measurement and true RMS measurement and other parameters. It is an ideal tool for the laboratory, factory, radio enthusiasts and families.1. True RMS2. NCV3. Auto range4. 9999 Counts display5. Black EBTN screen6.Main measurements: DC/AC/Resistance/Continuity/Diode/Capacitance/Frequency/Temperature7.Flashlight8.Backlight9.Data Hold10. Auto power off11. Full unit symbol12. Max/Min function13. Relative value measurementSpecification:Display: Black EBTN screenMaximum display: 9999 (3 9/10) bits automatic polarity displayMeasurement: double integral A / D conversionSampling rate: about 3 times per secondOverrange display: the most significant bit was "0L"Low voltage display: YesWorking environment: (0~40)℃,relative humidity80%Power supply: 2 x AAA 1.5V battery(not inclu