Klein Tools AC/DC Voltage Tester Electronic. It features indicators for positive and negative DC polarity and tests DC voltages as low as 1.5V. It tests AC voltages 12-240VAC. Specifications for Klein Tools Electronic AC/DC Voltage Tester: Manufacturer: Klein Tools Voltage: 600 volts Color: Black Features of Klein Tools Electronic AC/DC Voltage Tester Voltage Tester for AC voltages from 12V to 240V AC at four useful levels aligned with commonly used residential voltages. Tests DC voltages from 1.5V to greater than 17 to 24V at four useful levels aligned with commonly used DC voltages. Bright LEDs illuminate to indicate the type and level of voltage detected. Built to withstand a 9.8-Foot (3 m) drop. Indicates polarity when measuring DC voltages. Powers off automatically after approximately 2 minutes of non-use to conserve battery life. CATIII 250V Class 2 Double insulation. Ingress protection IP41 dust and water resistant. Low battery indicator with easily accessible battery compartment Low battery indicator with easily accessible battery compartment. Package Contents: Klein Tools Electronic AC/DC Voltage Tester User Manual Klein Tools ET40: AC/DC Voltage Tester Electronic