-Voltage detection from 90 to 1000 V AC, suitable for a wide range of residential, commercial and industrial needs -NEW! Always on, using special low power circuitry to sustain battery life and ensure your 2AC is always ready -NEW! Innovative 'Battery Check' button function ensures battery is in good condition* -CAT IV 1000 V overvoltage rated product for best in class user protection -Expanded range: 90 V AC to 1000 V AC -Integrated clip design, optimized for pocket storage -Powered by 2x AAA batteries (included) -Fluke ruggedness and reliability