Identification function: Directly measure electricity to identify Double display professional electricity measurement: Lamp display direct electric measurement, lcd display Inductions electricity measurement. Detection: Hold down the steel hat with the hand and the tip of the electric pen, respectively, and the lcd display shows that the battery is sufficient, which mean that the battery is insufficient and dead. Rest assure that button lock the tool holder: The double head can easily replace and secure. Line detection: Inductive electricity measuring lcd display line judgments, Manufacturer: divuukyi