Description: Auto/manual ranges, true RMS, 550V protection in resistance, capacitance and frequency ranges. Large LCD display with backlight, max display: 9999 counts Relative measurement, data hold, polarity identification, with auto power off function Low voltage indication, square wave output, 9.999A high current and low current measurement Main measurements: voltage, current, resistance, capacitance, diode and continuity testing, frequency and duty cycle, etc. Specification: Size: Approx. 130 65 32 mm/ 5.12 2.56 1.26 inch Material: ABS Sample rate: 3 times/ s Frequency0.01Hz to 9.999MHz Capacitance :0.001nF to 9.999mF AC volts: 0.001mV to 750V DC volts0.001mV to 999.9V AC current0.01uA to 9.999A DC current0.01uA to 9.999A Resistance 0.01 to 9.999M Duty cycle1% to 99% Square Wave Output:50Hz/100Hz/200Hz/300Hz/400Hz/500Hz/600Hz/700Hz/800Hz/900Hz/1000Hz/2000Hz/3000Hz/4000Hz/5000Hz Capacitance: 9.999nF(5.0%+20), 99.99nF/999.9uF/9.999uF/99.99uF/999.9uF(2.0%+5), 9.999mF(5.0%+5) DC volts: 9.999mV/99.99mV/999.9mV/9.999V/99.99V/999.9V(0.5%+3) AC volts: 9.999mV/99.99mV/999.9mV/9.999V/99.99V/750.0V(1.0%+3) DC current99.99uA/999.9uA(0.8%+3), 999.9mA/9.999A(1.0%+3) AC current99.99uA/999.9uA(1.0%+3), 999.9mA/9.999A(1.2%+3) Resistance: 99.99(1.0%+3), 999.9/9.999K/99.99K/999.9K(0.5%+3), 9.999M(1.5%+3) Frequency: 99.99/999.9/9.999k/99.99k/999.9k/9.999M(0.1+2) Duty cycle: 1% to 99%(0.1%+2) Measurement mode: Double-integral style transform Over range indication: OL Working environment: 0 to 40, humidity less than 75% Storage environment: -20 to 60 humidity less than 80% Battery: 21.5V (do not contain) Package Includes: 1 Piece of Digital Multimeter 2 Pieces of Test Leads 1 Piece of User Manual