The Fluke LVD1 volt light is a non-contact AC voltage detector and LED flashlight combined into one convenient, compact design with exclusive dual-sensitivity. The voltage detector emits a blue glow when it's near AC voltage and emits a red glow when it's at the source. The LVD1 can detect voltages from 40V AC to 300V AC.
The voltage detector glows blue between 50 Hz - 60 Hz or 2.5 - 38 cm (1 - 5") away from the source. The operating temperature of the Fluke LVD1 volt light is 0° to 50°C. The AAA battery, necessary for operation, is included and the ultra-bright white LED offers 100,000 hours of bulb life.