Klein Tools MM720 Multimeter is an automatically ranging true root mean squared (TRMS) digital multimeter that measures AC/DC voltage, AC/DC current, and resistance. It can also measure temperature, capacitance, frequency, duty-cycle, diodes and continuity. It features a high visibility, reverse contrast LCD display with an optical sensor to automatically optimize viewability in dark or bright ambient lighting. Features: Multimeter with automatic ranging true root mean square (TRMS) technology for increased accuracy; Tester measures up to 1000V AC/DC voltage, 10A AC/DC current and 60 MOhms resistance plus temperature, capacitance, frequency, low impedance (LoZ), duty-cycle, test diodes and continuity; High visibility, reverse contrast display with optical sensor to automatically optimize viewability in dark or bright ambient lighting; Low Impedance (LoZ) mode for identifying and eliminating ghost or stray voltages; Low battery indicator and easily accessible battery and fuse compartment; Tough meter built to withstand a 6.6-Foot (2 m) drop and is rated IP42; Includes carrying pouch, test leads, thermocouple with adapter, and batteries; CAT IV 600V Safety Rating; For use in basic and controlled electromagnetic environments such as residential, business and light-industrial locations; High-Visibility Display with Optical Sensor; Auto-Range; Min/Max/Relative; Low Impedance (LoZ) Mode; Auto Power-Off; Data Hold - Warnings: Read, understand and follow all instructions, cautions and warnings attached to and /or packed with all test and measurement devices before each use.; Do not use the meter during electrical storms or in wet weather, and do not use the meter or test leads if they appear to be damaged.; Before each use verify meter operation by measuring a known voltage or current.; Use personal protective equipment to prevent shock and arc blast injury where hazardous live conductors are exposed.