1.DC-40MHz 2.Dual channel/dual tracing, X-Y mode 3.CH1,CH2,ALT,CHOP,ADD mode ... grounding -ACRise time8.8nsPolar reactionOnly CH2Horizontal reflectionDisplay mode1, 10, X-YTime base0.2us/div to 0.2s/div: 9 ranges ... range220V/110V +/-10%Fuse0.5A/1AFrequency50Hz/60HzAppearanceDimensions310(W) x 130(H) x 370(D)mmWeight8kgEnvironment requirementTemperatureNominal operation temperature: +10ºC to ...