Non-insulated tool, not electrically charged! With pen function for emergency use only! Touch the end of the sensing part of the handle with the palm of your hand. Head is not insulated, beware of electric shock. Measurement range is 12V-250V AC/DC (not rectified DC). When touching the fire wire, the red and green lights come on and the horn sounds. When touching the zero wire, the green horn light does not come on. Detect soft green light on wire. Detection of live line disconnect light does not illuminate. The stylus is fitted with 3 * LR44 (AG13) button cell batteries. *LA324108, 8-in-1 electrician's pliers, permanent electrical/wire stripping/cutting/crimping/splitting/spinning/clamping fixing. *AWG18, 14, 12, 10, 6/1, 0, 1, 5, 2, 0, 2, 5, 4, 0 mm dip wire; 25 mm cable, open cable jacket, 2*1.5 mm split wiring *Wire stripping pliers are made of 3Cr13 stainless steel, not easy to rust. General heat treatment, special heat treatment blade hardness up to HRC552. * Fixing, stripping, cutting, separating, winding, opening and pulling wires in one. * Multi-functional wire stripping pliers are suitable for plumbing installation, utility maintenance, electrical decoration, electronic harness, electrical box making, automotive wiring and so on. Product Packaging: 1* Wire stripping pliers