... voltage testing pen, (3)Features: 12-250v AC test and 1.5-36v DC test.two dis (1) Type: showed in the ... voltage testing pen, (3)Features:12-250v AC test and 1.5-36v DC test.two display ways, crystal and neon. withlong ... times, (4)Packing:1000pcs(50pcsx20boxes)/ctnOur factory manufactures switch, socket, plug, outlet, adaptor, circuit breaker,lamp holder, ventilator and other electrical ...