Non-contact AC voltage detector and LED flashlight combined into one easy to use pen-style design. The LVD2 is a CAT IV 600 V rated non-contact detector that is suitable for commercial and industrial applications. The LVD2 includes dual sensitivity turning blue 1" to 5" (2.54 cm to 12.7 cm) from the source and red when at the source. Dual Sensitivity LED light with 100,000 hour life Detects from 90 to 600 V AC Rated to CAT IV 600 V Dual Levels of Detection Blue indicates proximity to AC Voltage source Red indicates you’re at the source Operating temperature 0 deg C to 50 deg C Ultra-Bright White LED 100,000 hr bulb AAA battery included