Product Description:Accuacy is specified for a period of year after calibration and at 18 Degreeto 28 Degree(64 Degree F to 82 Degree) with relativehumidity to 75%.General SpecifiationsIt includes 7 function with 25 rangs.Auto ranges.Overrange protection for all ranges.Max.Voltage Between Terminals And Earth Ground; 600V DC or 500V ACPower supply: 9V Zinc-carbon battery.Display: LCDMAX.Show Value: 1999 counts maxPolarity Indication:"-" indicates negative polarity.Overrange Indication: Display" OL" or "-OL"Sampling Time: approx.0.4secondUntil showing of function and electrical capacity.Auto power supply: 15min.Power Supply: 1.5V*2Low Battery Indication: dispalyedTemperature, Factor<0.1*Accuracy/DegreeOperating Temperature: 0 to 40 Degree (32 to 104 F )Storage Temperature: 0 to 50 Degree(10 to 122 F)Circumstance Temperature: 235 DegreeRelative Humiditu: <70% Auto Range:DC Voltage: 200mV, 2V, 20V, 200V, 600VAC Voltage: 2V, 20V, 200V, 500V (Frequency Range: 40~400Hz)DC Current: 200uA, 2000uA, 20mA, 200mAAC Current: (Take it only as reference) 200uA(5% of rdg),2000uA (3% of rdg),20mA (5% of rdg),200mA (3% of rdg) (Frequency Range: 40~400Hz)Resistance: 200, 2K, 20K, 200K, 2M, 20MDiode Test: test current 1mA, test voltage 1.5V DCContinuity: <80 BeeperColor: blackDimension: 120*75*20mmWeight: approximate 138g(batteries not included) Package include: 1* Auto Range Digital Multimeter1* User manualPackage dimension: 128*78*22mmPackage weight: 160g Because of China's aviation regulations, our product does not include the battery, Battery is very cheap, please to buy yourself store, thank you for your understanding and support!