Features: 100% Brand New And High Quality Perform measurements of AC/DC voltage and current resistance capacitance frequency duty cycle diode and continuity test. Measuring frequency AC/DC current and duty cycle by clamp. LCD with backlight !#!amp!*! bar graph and clamp lighting bulb. Relative value measurement and auto range function. Provided with one excellent cloth bag for conveniently-carrying. Data holding to hold the readings while taking measurement. Maximum and minimum value measuring and holding. Automatic indication of functions and unit symbols. Auto power off and low battery indication. Full overload protection and dual insulation protection. Over-molding rubber case shake-proof skid-proof and good touch-feeling. Specifications: Max. V between terminals !#!amp!*! earth: 1000V DC or 750V rms AC Operating temperature: 0 to 40 Celsius Degree (32 Fahrenheit to 104 Fahrenheit) Storage temperature: -10 to 50 Celsius Degree (10 Fahrenheit to 122 Fahrenheit) Operating altitude: Max. 2000 meters (7000 ft.) Max. diameter for conductor: Diameter 26mm Max. displayed value: 4000 digits Auto polarity indication: "-" for negative polarity. Over-range indication:"0L" or "-0L" Converter rate: 3 times/sec; Bar graph: 30 times/sec Auto power off time: 15 minute Power supply: 3 * 1.5V AAA battery (not included) Multimeter size: 20.8 * 7.8 * 3cm / 8.2 * 3.1 * 1.18in Multimeter weight: 238g / 8.4oz Measurement specifications (accuracy): AC Current 40A/400A: 2.0% DC Current 40A/400A: 2.0% DC Voltage 400mV: 1.0% 4V/40V/400V: 0.7% 1000V: 0.8% AC Voltage 4V/40V/400V: 0.8% 750V: 1.0% Frequency By A range (current clamp) 10Hz/1kHz/!#!gt!*!1kHz1.5% By ACV range 10Hz/1kHz/10kHz 1.5% !#!gt!*!10kHz Take it only as reference By Hz/DUTY range 9.999Hz/99.99Hz/999.9Hz/9.999kHz/99.99kHz/999.9kHz/9.999MHz0.5% Resistance 400/4k/40k/400k/4M 0.8% 40M 1.2% Capacitance 40nF/400nF/4uF/40uF/400uF/4000uF 4.0% Package includes: 1 x Digital Multimeter 2 x Test Lead 1 x Instruction Manual Because of the airspace controls not include battery