Polarity indication: automatically display "-" Over-range indication: display "OL" Range : automatic or Operating temperature: 0 Celsius to 40 Celsius, 80%RH Storage temperature: -10 Celsius to 50 Celsius, 85% RH Battery type: 3V x 22032 size (not included) (auto range) Range resolution accuracy 200mV 0.1mV(0.8% of reading + 5dgts) 2V 1mV(0.5% of reading + 2dgts) 20V 10mV 200V 100mV 600V 1V(1.0% of reading + 5dgts) Overload protection: 600V DC / AC Maximum input voltage: 600V DC DC current Range resolution accuracy 200uA 0.1uA (0.8% of reading + 5dgts) 2000uA 1uA 20mA 10uA 200mA 100uA Overload protection: F0.5A / 600V fuse maximum. Input current: 500mA Voltage drop: 200uA and 20mA range: 20mV 2000uA and 200mA range: 200mV AC current Range resolution accuracy 200uA 0.1uA(1.0% of reading + 5dgts) 2000uA 1uA 20mA 10uA 200mA 100uA Overload protection: F0.5A / 600V fuse Maximum input current: 500mA Voltage drop: 200uA and 20mA range: 20mV 2000uA and 200mA range: 200mV Frequency range: 40Hz~400Hz Colour:Black+white Material:plastic Size:110 x 55 x 10mm Package Contents: 1 * Digital Multimeter 2 * Test Lines Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.