* Features:
   3-30V Detection range of DC Voltage
   Dual color led indicates red for power and green for ground on
   6V, 12V and 24V Systems
   BI-Directional polarity testing: Power ( Long sound) and ground
   (Intermittent sound)
   Compact size for use in tight access areas for use on automotive,
   commercial vehicle and equipment repair
   V-Goove needle accessory msakes piercing and carrying safe
   Replacement Long-Life batteries included