This is the professional voltage testing pen, made from , which provides fast and accurate voltage detection. It is sturdy and durable for long-time use. With a clear screen design, it is easy to read. It is an excellent choice and a good helper for you. Features -Color: Black. -Material: ABS, LCD. -Size: About 19.05X2.54X2.20cm/7.49X1.00X0.86in. -Application range: 12-1000V. - Battery: 2 x button (Included). - and low power consumption. A perfect tool kit for home and electric industry uses. - When testing the voltage, the brightness bar on the screen will tell you the voltage intensities. - When the voltage is detected, the tip will send out red light and . - The electric tester pen can automatically detect the live or neutral wire. - Excellent for breakpoint test. Handy circuit tester for electricians, homeowners. Package list: 1 Set x Voltage Detectors Kit