Circuit Alert Voltage Sensing Tools are designed to eliminate that moment of doubt we’ve all experienced before making contact with an electrical fixture. Each of the 12 tools has a snap-in voltage sensor that audibly and visually alerts a worker that a circuit is live. The lineup includes various types of wire strippers, pliers, screwdrivers, and flashlights, plus one utility knife. Retail prices range from $12 to $24. Gardner Bender, 800/822-9220, circuitalert.com.