Diode Test: Yes, show approximate voltage dropOn-off detection and buzzer function: YesBattery capacity test: 9V supply: 12V 2x3A battery (not included)Product advantages: Mini ultra-thin, integrated design, compact and beautiful, easy to carryName: Multimeter DT83BSecurity level: IDC voltage: 200m-2000m-20-200-400V +/-0.5%AC voltage: 200-400V +/-1.0%DC current: 2000u-20m-200mA +/-1.8%: 200-2000-20k-200k-2000kohm +/-1.0%LCD display size: 35x14mmLCD maximum display value: 1999Low voltage : yesOverload protection: yescolour:BlackMaterial:plasticsize:102 x 60 x 24mmPackage Contents:1 x Digital MultimeterOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.