- The maximum voltage of voltage input terminal and the ground : 600 V, Rms - The mA input terminal fuse : 0,2A/250 Volt recovery fuse. - 10 A no fuse - Backlight : manual light and automically turns off - Range : Manual - Display : The maximum reading of LCD is 1999; update range is 2-3 times per second - Polarity : Negative polarity - Over Range Indicator - Data hold - Lower battery voltage - Battery inside : 9V NEDA 160 of 6F22 - Operation temperature : 0 - 40 Deegre celcius - Storage temperature : -10 - 50 Degree Celcius - Altitude : Working 2000 Meter, Storage 10000 Meter - Size : 143mm x 74mm x 35mm