Electrical Detector Slotted Screwdriver Tester Pen Digital Voltage Tester With Batteries (1 Pc) Description :- Smart Chip: With intelligent motherboard chip, this test pen have enhanced chip control program, making the pen possesses higher security and longer life. Electrical On Off Detection: This test pen can test the electrical on off. If the core of the plug is in good condition, the LED green light is on. If it is not on, the core of the plug is disconnected and the contact is not good. ABS Shell: Equipped with ABS shell, this pen is wear resistance, scratch resistance, comes with a long life span. Easy Carrying: Comes with small size and lightweight, you can easily take this pen with you to help with your work. Determine Neutral Wire and Live Wire: This test pen can distinguish between the neutral wire and the live wire, insert the electric needle position into the socket, the red and green light works together is the live wire, and plug it into the other socket, the green light is on, it is the neutral wire. Dimension :- Volu. Weight (Gm) :- 63 Product Weight (Gm) :- 31 Ship Weight (Gm) :- 63 Length (Cm) :- 19 Breadth (Cm) :- 7 Height (Cm) :- 2   Read Less