Giới thiệu Bút kiểm tra điện áp , cảm biến không tiếp xúc AC 90 ~ 1000V
description: features : 100% new high quality if power is detected while use, this product will glow sound the written position is built a bright white led, can be used as a simple flashlight color as shown material: abs plastic size: 152x22mm operating power: 2 x aaa batteries(not include) uses:ideal design for testing power cables, circuit breakers, wall outlets, junction boxes, fuse boxes, etc. packing:1 x test pen