(1) Type: SR-74101R , (2)Name: digital voltage testing pen, (3)Features: 12-250v AC test and 1.5-36v DC test.two display ways (1) Type: SR-74101R , (2)Name: digital voltage testing pen, (3)Features: 12-250v AC test and 1.5-36v DC test.two display ways, crystal and neon. with long life neon, on/off 20000 times, (4)Packing:1000pcs(50pcsx20boxes)/ctnOur factory manufactures wall switch, socket, plug ...