Polarity indication: automatically display "-"Over-range indication: display "OL"Range selection: automatic or manualOperating temperature: 0 Celsius to 40 Celsius, below 80%RHStorage temperature: -10 Celsius to 50 Celsius, below 85% RHBattery type: 3V x 22032 size (not included)DC voltage (auto range)Range resolution accuracy200mV 0.1mV(0.8% of reading + 5dgts)2V 1mV(0.5% of reading + 2dgts)20V 10mV200V 100mV600V 1V(1.0% of reading + 5dgts)Overload protection: 600V DC / AC Maximum input voltage: 600V DCDC currentRange resolution accuracy200uA 0.1uA (0.8% of reading + 5dgts)2000uA 1uA20mA 10uA200mA 100uAOverload protection: F0.5A / 600V fusemaximum. Input current: 500mAVoltage drop: 200uA and 20mA range: 20mV2000uA and 200mA range: 200mVAC currentRange resolution accuracy200uA 0.1uA(1.0% of reading + 5dgts)2000uA 1uA20mA 10uA200mA 100uAOverload protection: F0.5A / 600V fuseMaximum input current: 500mAVoltage drop: 200uA and 20mA range: 20mV2000uA and 200mA range: 200mVFrequency range: 40Hz~400HzColour:Black+whiteMaterial:plasticSize:110 x 55 x 10mmPackage Contents:1 * Digital Multimeter2 * Test LinesOnly 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.