Description :   UNI-T UT81B Handheld Oscilloscope Digital Multimeter 8MHz w\/ USB & LCD     Brand Name : UNIT Model Number : UT81B  Specification :                 Basic Functions         Range         Best Accuracy               DC Voltage         400mV\/4V\/40V\/400V\/1000V         ±(0.8%+8)               AC Voltage         4V\/40V\/400V\/750V         ±(1%+15)               DC Current         400mA \/4000mA\/40mA\/400mA\/4A\/10A         ±(1%+8)               AC Current         400mA\/4000mA\/40mA\/400mA\/4A\/10A         ±(1.5%+8)               Resistance         400Ω\/ 4kΩ\/40kΩ\/400kΩ\/4MΩ\/ 40MΩ         ±(1%+5)               Capacitance         40nF \/400nF\/4mF\/40mF\/100mF         ±(3%+8)               Frequency         10Hz~10MHz         ±(0.1%+3)               Vertical Accuracy                   ±(5%+1)               Input Sensitivity         20mV\/div-500V\/div (1-2-5)         √               Horizontal Accuracy                   ±(0.01%+1)               Timebase Range         100ns\/div-5s\/div (1-2-5)         √               Bandwidth                   8MHz               Display Resolution         160X160         √               Real-Time Sample Rate                   40MSa\/s               Duty Cycle         0.1%~99.9%         √               Special Functions                         Diode                   √               Continuity Buzzer                   √               Display         160x160 Monochrome         √               Trigger Types         Free Run \/ Normal \/ Single Shot         √               Memory         10 screens and setups         √               Contrast and Bright Setup                   √               Input Impedance For DCVoltage Measurement         Around 10MΩ         √               Sleep Mode                   √               Low Battery Display                   √               Display Backlight                   √               USB                   √               Max.Display         3999         √                       Power         1.5V Battery (R6) x 6               LCD Size         60 x 60mm               Product Color         Red and Grey               Product Net Weight         500g               Product Size         200 x100 x 48mm               Standard Accessories         Test Lead ， Battery， Alligator Clip，     USB Interface Cable， Software， Power Adapter               Optional Accessories*