OW18x Digital Multimeter ＋Specification model：OW18B Measurement Range Resolution Accruacy DC Voltage (V) 600.0mV/6.000V/60.00V/600.0V 0.1 mV ±(0.5%+2 dig) 1000V 1 V ±(0.8%+2 dig) AC Voltage (V) 600.0mV/6.000V/60.00V/600.0V 0.1 mV ±(0.8%+3dig) 750V 1 V ±(1%+3dig) DC Current (A) μA 60.00uA/600.0μA 0.01μA ±(0.8%+2dig) mA 60.00mA/600.0mA 0.01mA A 10.00A 0.01A ±(1.2%+3dig) AC Current (A) μA 60.00uA/600.0μA 0.01μA ±(1%+3dig) mA 60.00mA/600.0mA 0.01mA A 10.00A 0.01A ±(1.5%+3dig) Resistance (Ω) 600.0Ω/6.000kΩ/60.00kΩ/600.0kΩ/6.000MΩ 0.1Ω ±(0.8%+2dig) 60.00MΩ 0.01 MΩ ±(2%+3dig) Capacitance (F) 60.00nF/600.0nF/6.000μF/60.00μF 0.01nF ±(2.5%+3dig) 600.0μF/6.000mF/60.00mF 0.1μF ±(3%+5dig) Frequency 9.999Hz/99,99Hz/999.9Hz/9.999kHz/ 99.99kHz/99.9kHz/9.999MHz 0.001Hz ±(0.8%+2dig) Duty Ratio (%) 0.1%~99.9%(typical value：Vrms=1V,f=1kHz) 0.1% ±(1.2%+3dig) 0.1%~99.9%(≥1kHz) ±(2.5%+3dig) Temperature (°C/°F) '- 50 ℃~400℃ 1℃ ±(2.5%+3dig) '-58 ℉ ~ 752 ℉ 1℉ ±(4.5%+5dig) Display 5999 Frequency Response (20 - 1000) Hz Shift Rate 3 times/s Auto-scale √ Data Hold √ LCD Backlight √ Flashligh √ Diode Test √ True RMS √ Audion Test √ Input Protection √ Auto Power-off √ Input Impedance ≥10MΩ On-off Warning √ Battery 3V (1.5V x 2) AA Low-battery Indicator √ Relative Measurement √