Neuro-Pulse nerve locators were designed for identifying exposed motor nerves while at the same time reducing the possibility of accidental nerve damage or severance. These self-powered units are portable and battery-operated. Ideal for head, neck, hand, plastic and facial applications. Red LED, packaged 10 per box. Each Neuro-Pulse unit has three output settings: 1/2 mA, 1 mA and 2mA at 3 volts DC.